#281A75#281A75

#281A75 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.7% C 0.145 H 280.5°. Best body text is #FFFFFF at 14.05:1 contrast (WCAG AA passes).

Color values

HEX	#281A75
RGB	rgb(40, 26, 117)
HSL	hsl(249, 64%, 28%)
HSV	hsv(249, 78%, 46%)
CMYK	cmyk(65.8%, 77.8%, 0%, 54.1%)
CIE-LAB	lab(17.80, 34.58, -49.56)
CIE-LCH	lch(17.80, 60.43, 304.90°)
OKLab	oklab(30.65% 0.0265 -0.143)
OKLCH	oklch(30.65% 0.145 280.5)
XYZ	xyz(4.4543, 2.4739, 17.0690)
Luminance	0.0247 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281A75 #67751A

analogous

#1A3975 #281A75 #551A75

triadic

#281A75 #75281A #1A7528

tetradic

#281A75 #751A39 #67751A #1A7555

square

#281A75 #751A39 #67751A #1A7555

split-complementary

#281A75 #75551A #39751A

monochromatic

#090619 #170F43 #281A75 #3925A7 #4F37D3

Accessibility & contrast

On white

14.05

#281A75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#281A75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281A75

14.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281A75	#FFFFFF	#000000	##FFFFFF
##281A75	1.00	14.05	1.49	14.05
#FFFFFF	14.05	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F78

Deuteranopia (green-blind)

#002873

Tritanopia (blue-blind)

#003446

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #281a75;
/* rgb */ color: rgb(40, 26, 117);
/* oklch */ color: oklch(30.7% 0.145 280.5);

Tailwind

colors: {
  custom: {
    50: '#6d599e',
    500: '#281a75',
    950: '#000000',
  },
}

SCSS

$custom: #281a75;
$custom-light: #6d599e;
$custom-dark: #000000;

JSON

{
  "hex": "#281a75",
  "rgb": {
    "r": 40,
    "g": 26,
    "b": 117
  },
  "hsl": {
    "h": 249.231,
    "s": 63.636,
    "l": 28.039
  },
  "oklch": {
    "l": 0.30655,
    "c": 0.14545,
    "h": 280.5
  },
  "luminance": 0.02474
}

Semantic roles & 50–950 ramp

primary

#281A75

secondary

#9AAA41

accent

#E741CD

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08030E

muted

#7B787E

Preview Lab

Preview with #281A75

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

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