#281F76#281F76

#281F76 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.5% C 0.141 H 279.2°. Best body text is #FFFFFF at 13.57:1 contrast (WCAG AA passes).

Color values

HEX	#281F76
RGB	rgb(40, 31, 118)
HSL	hsl(246, 58%, 29%)
HSV	hsv(246, 74%, 46%)
CMYK	cmyk(66.1%, 73.7%, 0%, 53.7%)
CIE-LAB	lab(18.97, 31.95, -48.29)
CIE-LCH	lch(18.97, 57.90, 303.49°)
OKLab	oklab(31.51% 0.0226 -0.1393)
OKLCH	oklch(31.51% 0.141 279.2)
XYZ	xyz(4.6340, 2.7387, 17.4205)
Luminance	0.0274 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281F76 #6D761F

analogous

#1F4276 #281F76 #541F76

triadic

#281F76 #76281F #1F7628

tetradic

#281F76 #761F42 #6D761F #1F7654

square

#281F76 #761F42 #6D761F #1F7654

split-complementary

#281F76 #76541F #42761F

monochromatic

#080618 #181246 #281F76 #382CA6 #5042CD

Accessibility & contrast

On white

13.57

#281F76 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#281F76 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281F76

13.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281F76	#FFFFFF	#000000	##FFFFFF
##281F76	1.00	13.57	1.55	13.57
#FFFFFF	13.57	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003179

Deuteranopia (green-blind)

#002B74

Tritanopia (blue-blind)

#003748

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #281f76;
/* rgb */ color: rgb(40, 31, 118);
/* oklch */ color: oklch(31.5% 0.141 279.2);

Tailwind

colors: {
  custom: {
    50: '#6d5c9e',
    500: '#281f76',
    950: '#000000',
  },
}

SCSS

$custom: #281f76;
$custom-light: #6d5c9e;
$custom-dark: #000000;

JSON

{
  "hex": "#281f76",
  "rgb": {
    "r": 40,
    "g": 31,
    "b": 118
  },
  "hsl": {
    "h": 246.207,
    "s": 58.389,
    "l": 29.216
  },
  "oklch": {
    "l": 0.31514,
    "c": 0.14113,
    "h": 279.2
  },
  "luminance": 0.02739
}

Semantic roles & 50–950 ramp

primary

#281F76

secondary

#9FAA47

accent

#E246D2

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040E

muted

#7B797E

Preview Lab

Preview with #281F76

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

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