#283B81 Color

#283B81 is rgb(40, 59, 129) in RGB and hsl(227, 53%, 33%) in HSL. The closest CSS named color is DarkSlateBlue. White text is most readable on this background.

#283B81

HEX#283B81

RGBrgb(40, 59, 129)

HSLhsl(227, 53%, 33%)

HSVhsv(227, 69%, 51%)

OKLCHoklch(37.9% 0.12 268.6)

CMYKcmyk(69%, 54%, 0%, 49%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #283B81 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text10.33:1AA normal ✓AA large ✓AAA normal ✓

TextBlack text2.03:1AA normal ✗AA large ✗AAA normal ✗

Color Harmonies

Colors that pair well with #283B81 based on color wheel relationships. Click any swatch for its full breakdown.

Base#283B81 Complementary#816D28 Analogous#286781 Analogous#412881 Triadic#81283B Triadic#3B8128

Tints & Shades

Lighter tints and darker shades of #283B81, useful for hover states, backgrounds, and text variants.

Tints

#324BA4 #4460C5 #677ED0 #8A9CDB #ADB9E6 #D4DBF2

Shades

#233471 #1E2D62 #192552 #131D3E #0E152F #0A0E1F

Use #283B81 in Our Tools

Hex to RGB Hex to HSL Hex to CMYK Hex to Pantone RGBA to Hex