#00356B Color

#00356B is rgb(0, 53, 107) in RGB, hsl(210, 100%, 21%) in HSL, and about cmyk(100%, 50%, 0%, 58%) in CMYK. The closest CSS named color is MidnightBlue (#191970). White text is the more readable choice on this background.

#00356B

HEX#00356B

RGBrgb(0, 53, 107)

HSLhsl(210, 100%, 21%)

HSVhsv(210, 100%, 42%)

CMYKcmyk(100%, 50%, 0%, 58%)

OKLCHoklch(33.2% 0.107 254.4)

LABlab(21.74% 2.48 -36.62)

LCHlch(21.74% 36.70 273.88)

#00356B Channel Values

How #00356B 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 0 · G 53 · B 107	8-bit channels as sent to the display
HSL	H 210° · S 100% · L 21%	Easiest model for building lighter and darker variants
HSV	H 210° · S 100% · V 42%	Matches the picker in most design tools
CMYK	C 100% · M 50% · Y 0% · K 58%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	12.2:1 vs white · 1.72:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #00356B 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.

TextWhite text12.2:1AA normal ✓AA large ✓AAA normal ✓

TextBlack text1.72:1AA normal ✗AA large ✗AAA normal ✗

Need a specific ratio against another background? Open #00356B in the contrast checker.

Colors That Go With #00356B

Pairings derived from color-wheel relationships. The complementary color sits opposite #00356B; 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 #00356B

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 #00356B.

How #00356B 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#00356B

Protanopia#30306B

Protanomaly#24326B

Deuteranopia#2B2B6B

Deuteranomaly#202F6B

Tritanopia#003F3F

Tritanomaly#003B54

Achromatopsia#353535

Test a full palette in the color blindness simulator.

Using #00356B in Code

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

CSS custom property--color-00356b: #00356B;

CSS backgroundbackground-color: #00356B;

Tailwind configcolors: { 'color-00356b': '#00356B' }

SwiftUIColor(red: 0.000, green: 0.208, blue: 0.420)

Android XML<color name="color_00356b">#00356B</color>

SVG fillfill="#00356B"

#00356B Frequently Asked Questions

What is the RGB value of #00356B?

#00356B is rgb(0, 53, 107) — red 0, green 53, and blue 107 on the 0-255 scale.

What is the CMYK value of #00356B?

#00356B converts to approximately cmyk(100%, 50%, 0%, 58%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #00356B be black or white?

White text is the more readable choice. #00356B scores 12.2:1 against white and 1.72:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Does #00356B have a color name?

#00356B is not one of the 140 CSS named colors. The closest named color is MidnightBlue (#191970), at a CIE76 distance of 28.3, so the two are clearly different.

Open #00356B in a Tool

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

#00356B sits in the blue family — browse every shade of blue with hex codes, or return to the full color library.