#281F60#281F60

#281F60 is a dark, moderate blue. Relative luminance 0.023; OKLCH L 29.4% C 0.110 H 283.6°. Best body text is #FFFFFF at 14.43:1 contrast (WCAG AA passes).

Color values

HEX	#281F60
RGB	rgb(40, 31, 96)
HSL	hsl(248, 51%, 25%)
HSV	hsv(248, 68%, 38%)
CMYK	cmyk(58.3%, 67.7%, 0%, 62.4%)
CIE-LAB	lab(16.87, 24.28, -37.37)
CIE-LCH	lch(16.87, 44.56, 303.01°)
OKLab	oklab(29.36% 0.0259 -0.1073)
OKLCH	oklch(29.36% 0.11 283.6)
XYZ	xyz(3.4757, 2.2754, 11.3201)
Luminance	0.0228 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281F60 #57601F

analogous

#1F3660 #281F60 #491F60

triadic

#281F60 #60281F #1F6028

tetradic

#281F60 #601F36 #57601F #1F6049

square

#281F60 #601F36 #57601F #1F6049

split-complementary

#281F60 #60491F #36601F

monochromatic

#0A0717 #151032 #281F60 #3B2E8E #4F3DBD

Accessibility & contrast

On white

14.43

#281F60 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#281F60 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281F60

14.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281F60	#FFFFFF	#000000	##FFFFFF
##281F60	1.00	14.43	1.46	14.43
#FFFFFF	14.43	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C62

Deuteranopia (green-blind)

#00275F

Tritanopia (blue-blind)

#0F2F3C

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #281f60;
/* rgb */ color: rgb(40, 31, 96);
/* oklch */ color: oklch(29.4% 0.110 283.6);

Tailwind

colors: {
  custom: {
    50: '#685b8e',
    500: '#281f60',
    950: '#000000',
  },
}

SCSS

$custom: #281f60;
$custom-light: #685b8e;
$custom-dark: #000000;

JSON

{
  "hex": "#281f60",
  "rgb": {
    "r": 40,
    "g": 31,
    "b": 96
  },
  "hsl": {
    "h": 248.308,
    "s": 51.181,
    "l": 24.902
  },
  "oklch": {
    "l": 0.29359,
    "c": 0.11037,
    "h": 283.6
  },
  "luminance": 0.02276
}

Semantic roles & 50–950 ramp

primary

#281F60

secondary

#8A9546

accent

#DB4DC7

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#07040C

muted

#7A797D

Preview Lab

Preview with #281F60

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →