#12F3EF Color

#12F3EF is rgb(18, 243, 239) in RGB, hsl(179, 90%, 51%) in HSL, and about cmyk(93%, 0%, 2%, 5%) in CMYK. It has no registered color name of its own — the closest is Fluorescent Blue (#15F4EE), below the threshold most people can see at ΔE 1.1. Black text is the more readable choice on this background.

#12F3EF

HEX#12F3EF

RGBrgb(18, 243, 239)

HSLhsl(179, 90%, 51%)

HSVhsv(179, 93%, 95%)

CMYKcmyk(93%, 0%, 2%, 5%)

OKLCHoklch(87.2% 0.148 192.6)

LABlab(86.81% -49.28 -12.39)

LCHlch(86.81% 50.82 194.11)

What #12F3EF Is Called

Most hex codes have no name: there are 16.7 million of them and a few thousand registered names. These are the named colors nearest to #12F3EF, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Fluorescent Blue#15F4EEΔE 1.1 Neon Cyan#00FEFCΔE 4.17 Aqua#00FFFFΔE 4.84 Bright Turquoise#08E8DEΔE 5.03 Turquoise Blue#00FFEFΔE 7.85 Lotion Blue#15F2FDΔE 8.04

Browse the full index of named colors A-Z or every teal in the library.

#12F3EF Channel Values

How #12F3EF breaks down in each color model. Hue is measured in degrees around the color wheel; saturation, lightness, and the CMYK inks are percentages.

Model	Channels	Notes
RGB	R 18 · G 243 · B 239	8-bit channels as sent to the display
HSL	H 179° · S 90% · L 51%	Easiest model for building lighter and darker variants
HSV	H 179° · S 93% · V 95%	Matches the picker in most design tools
CMYK	C 93% · M 0% · Y 2% · K 5%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	1.39:1 vs white · 15.09:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #12F3EF background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1. Contrast is one check, not a full accessibility review.

Fails AAWhite text1.39:1AA normal AA large AAA normal

TextBlack text15.09:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #12F3EF in the contrast checker.

Colors That Go With #12F3EF

Pairings derived from color-wheel relationships. The complementary color sits opposite #12F3EF; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base

Complementary

Analogous

Analogous

Triadic

Triadic

Split comp.

Split comp.

Tints & Shades of #12F3EF

Lighter tints and darker shades built by moving the lightness channel while holding hue and saturation, which is what you want for hover states, backgrounds, and text variants.

Tints

Shades

Want a full 50-950 ramp with semantic roles? Generate design tokens from #12F3EF.

How #12F3EF Looks with Color Vision Deficiency

Simulated with the Viénot, Brettel & Mollon LMS projection model. Anomalous types are rendered as partial versions of the matching dichromacy, which is an approximation rather than a per-person clinical model.

Typical#12F3EF

Protanopia#E0E0EF

Protanomaly#B3E8EF

Deuteranopia#CCCCF2

Deuteranomaly#A2DDF1

Tritanopia#1AF3F3

Tritanomaly#17F3F1

Achromatopsia#DADADA

Test a full palette in the color blindness simulator.

Using #12F3EF in Code

Copy-ready declarations for the places this color usually ends up.

CSS custom property--color-12f3ef: #12F3EF;

CSS backgroundbackground-color: #12F3EF;

Tailwind configcolors: { 'color-12f3ef': '#12F3EF' }

SwiftUIColor(red: 0.071, green: 0.953, blue: 0.937)

Android XML<color name="color_12f3ef">#12F3EF</color>

SVG fillfill="#12F3EF"

More Teal Colors

#12F3EF sits in the teal family. These are its neighbours across that family's full range, each with its own breakdown.

002424 f5ffff 002a38 f0ffff 002d2e eefbfb 003333 ecfeff 003542 ecf7f9 003838 ebffff 006466 009999 00ebeb 0d1616 192929 24fbff 36747d 50bfe6 73a9c2 8dd9cc aec6cf ccffff

#12F3EF Frequently Asked Questions

What color is #12F3EF?

#12F3EF is a mid-tone teal — rgb(18, 243, 239) in RGB and hsl(179, 90%, 51%) in HSL. It carries no registered color name of its own; the closest named color is Fluorescent Blue (#15F4EE), which is below the threshold most people can see at a CIE76 distance of 1.1.

What is the RGB value of #12F3EF?

#12F3EF is rgb(18, 243, 239) — red 18, green 243, and blue 239 on the 0-255 scale.

What is the CMYK value of #12F3EF?

#12F3EF converts to approximately cmyk(93%, 0%, 2%, 5%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #12F3EF be black or white?

Black text is the more readable choice. #12F3EF scores 1.39:1 against white and 15.09:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #12F3EF as a CSS color keyword?

No. #12F3EF is not one of the CSS color keywords, so it has to be written as a hex, rgb() or hsl() value. The closest keyword is aqua (#00FFFF) at a CIE76 distance of 4.84, which is very hard to tell apart.

Open #12F3EF in a Tool

Hex to RGB Hex to HSL Hex to CMYK Hex to OKLCH Hex to Pantone Build a palette Make a gradient

Keep exploring: every teal in the color library, the guide to shades of teal, or the full color library.