#281F75#281F75

#281F75 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.4% C 0.140 H 279.4°. Best body text is #FFFFFF at 13.61:1 contrast (WCAG AA passes).

Color values

HEX	#281F75
RGB	rgb(40, 31, 117)
HSL	hsl(246, 58%, 29%)
HSV	hsv(246, 74%, 46%)
CMYK	cmyk(65.8%, 73.5%, 0%, 54.1%)
CIE-LAB	lab(18.86, 31.60, -47.81)
CIE-LCH	lch(18.86, 57.31, 303.46°)
OKLab	oklab(31.41% 0.0227 -0.1379)
OKLCH	oklch(31.41% 0.14 279.4)
XYZ	xyz(4.5749, 2.7151, 17.1092)
Luminance	0.0272 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281F75 #6C751F

analogous

#1F4175 #281F75 #531F75

triadic

#281F75 #75281F #1F7528

tetradic

#281F75 #751F41 #6C751F #1F7553

square

#281F75 #751F41 #6C751F #1F7553

split-complementary

#281F75 #75531F #41751F

monochromatic

#080618 #171245 #281F75 #392CA5 #5042CD

Accessibility & contrast

On white

13.61

#281F75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#281F75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281F75

13.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281F75	#FFFFFF	#000000	##FFFFFF
##281F75	1.00	13.61	1.54	13.61
#FFFFFF	13.61	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003178

Deuteranopia (green-blind)

#002A73

Tritanopia (blue-blind)

#003647

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #281f75;
/* rgb */ color: rgb(40, 31, 117);
/* oklch */ color: oklch(31.4% 0.140 279.4);

Tailwind

colors: {
  custom: {
    50: '#6d5c9e',
    500: '#281f75',
    950: '#000000',
  },
}

SCSS

$custom: #281f75;
$custom-light: #6d5c9e;
$custom-dark: #000000;

JSON

{
  "hex": "#281f75",
  "rgb": {
    "r": 40,
    "g": 31,
    "b": 117
  },
  "hsl": {
    "h": 246.279,
    "s": 58.108,
    "l": 29.02
  },
  "oklch": {
    "l": 0.31411,
    "c": 0.13979,
    "h": 279.4
  },
  "luminance": 0.02715
}

Semantic roles & 50–950 ramp

primary

#281F75

secondary

#9EA947

accent

#E146D1

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#08040E

muted

#7A797E

Preview Lab

Preview with #281F75

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

Preview Lab → · Contrast checker → · Palette generator →