#281F80#281F80

#281F80 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.6% C 0.154 H 277.6°. Best body text is #FFFFFF at 13.14:1 contrast (WCAG AA passes).

Color values

HEX	#281F80
RGB	rgb(40, 31, 128)
HSL	hsl(246, 61%, 31%)
HSV	hsv(246, 76%, 50%)
CMYK	cmyk(68.8%, 75.8%, 0%, 49.8%)
CIE-LAB	lab(20.00, 35.37, -52.96)
CIE-LCH	lch(20.00, 63.69, 303.73°)
OKLab	oklab(32.56% 0.0205 -0.153)
OKLCH	oklch(32.56% 0.154 277.6)
XYZ	xyz(5.2601, 2.9892, 20.7177)
Luminance	0.0299 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281F80 #77801F

analogous

#1F4680 #281F80 #581F80

triadic

#281F80 #80281F #1F8028

tetradic

#281F80 #801F46 #77801F #1F8058

square

#281F80 #801F46 #77801F #1F8058

split-complementary

#281F80 #80581F #46801F

monochromatic

#09071D #19134F #281F80 #372BB1 #5447D2

Accessibility & contrast

On white

13.14

#281F80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#281F80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281F80

13.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281F80	#FFFFFF	#000000	##FFFFFF
##281F80	1.00	13.14	1.60	13.14
#FFFFFF	13.14	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003483

Deuteranopia (green-blind)

#002C7E

Tritanopia (blue-blind)

#003A4D

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #281f80;
/* rgb */ color: rgb(40, 31, 128);
/* oklch */ color: oklch(32.6% 0.154 277.6);

Tailwind

colors: {
  custom: {
    50: '#6f5ca6',
    500: '#281f80',
    950: '#000000',
  },
}

SCSS

$custom: #281f80;
$custom-light: #6f5ca6;
$custom-dark: #000000;

JSON

{
  "hex": "#281f80",
  "rgb": {
    "r": 40,
    "g": 31,
    "b": 128
  },
  "hsl": {
    "h": 245.567,
    "s": 61.006,
    "l": 31.176
  },
  "oklch": {
    "l": 0.32564,
    "c": 0.15435,
    "h": 277.6
  },
  "luminance": 0.0299
}

Semantic roles & 50–950 ramp

primary

#281F80

secondary

#A9B348

accent

#E444D5

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08040F

muted

#7B797F

Preview Lab

Preview with #281F80

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

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