#281A74#281A74

#281A74 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.5% C 0.144 H 280.7°. Best body text is #FFFFFF at 14.09:1 contrast (WCAG AA passes).

Color values

HEX	#281A74
RGB	rgb(40, 26, 116)
HSL	hsl(249, 63%, 28%)
HSV	hsv(249, 78%, 45%)
CMYK	cmyk(65.5%, 77.6%, 0%, 54.5%)
CIE-LAB	lab(17.69, 34.25, -49.10)
CIE-LCH	lch(17.69, 59.86, 304.90°)
OKLab	oklab(30.55% 0.0267 -0.1416)
OKLCH	oklch(30.55% 0.144 280.7)
XYZ	xyz(4.3959, 2.4505, 16.7610)
Luminance	0.0245 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281A74 #66741A

analogous

#1A3974 #281A74 #551A74

triadic

#281A74 #74281A #1A7428

tetradic

#281A74 #741A39 #66741A #1A7455

square

#281A74 #741A39 #66741A #1A7455

split-complementary

#281A74 #74551A #39741A

monochromatic

#090619 #170F42 #281A74 #3925A6 #4F36D2

Accessibility & contrast

On white

14.09

#281A74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#281A74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281A74

14.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281A74	#FFFFFF	#000000	##FFFFFF
##281A74	1.00	14.09	1.49	14.09
#FFFFFF	14.09	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F77

Deuteranopia (green-blind)

#002872

Tritanopia (blue-blind)

#003445

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #281a74;
/* rgb */ color: rgb(40, 26, 116);
/* oklch */ color: oklch(30.5% 0.144 280.7);

Tailwind

colors: {
  custom: {
    50: '#6d599d',
    500: '#281a74',
    950: '#000000',
  },
}

SCSS

$custom: #281a74;
$custom-light: #6d599d;
$custom-dark: #000000;

JSON

{
  "hex": "#281a74",
  "rgb": {
    "r": 40,
    "g": 26,
    "b": 116
  },
  "hsl": {
    "h": 249.333,
    "s": 63.38,
    "l": 27.843
  },
  "oklch": {
    "l": 0.30548,
    "c": 0.14415,
    "h": 280.7
  },
  "luminance": 0.02451
}

Semantic roles & 50–950 ramp

primary

#281A74

secondary

#99A941

accent

#E641CD

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08030E

muted

#7B787E

Preview Lab

Preview with #281A74

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

Preview Lab → · Contrast checker → · Palette generator →