#281C77#281C77

#281C77 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.2% C 0.146 H 279.7°. Best body text is #FFFFFF at 13.79:1 contrast (WCAG AA passes).

Color values

HEX	#281C77
RGB	rgb(40, 28, 119)
HSL	hsl(248, 62%, 29%)
HSV	hsv(248, 76%, 47%)
CMYK	cmyk(66.4%, 76.5%, 0%, 53.3%)
CIE-LAB	lab(18.42, 34.09, -49.82)
CIE-LCH	lch(18.42, 60.37, 304.38°)
OKLab	oklab(31.16% 0.0246 -0.1438)
OKLCH	oklch(31.16% 0.146 279.7)
XYZ	xyz(4.6190, 2.6132, 17.7102)
Luminance	0.0261 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281C77 #6B771C

analogous

#1C3E77 #281C77 #561C77

triadic

#281C77 #77281C #1C7728

tetradic

#281C77 #771C3E #6B771C #1C7756

square

#281C77 #771C3E #6B771C #1C7756

split-complementary

#281C77 #77561C #3E771C

monochromatic

#080619 #171045 #281C77 #3928A9 #503CD1

Accessibility & contrast

On white

13.79

#281C77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#281C77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281C77

13.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281C77	#FFFFFF	#000000	##FFFFFF
##281C77	1.00	13.79	1.52	13.79
#FFFFFF	13.79	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00307A

Deuteranopia (green-blind)

#002975

Tritanopia (blue-blind)

#003648

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #281c77;
/* rgb */ color: rgb(40, 28, 119);
/* oklch */ color: oklch(31.2% 0.146 279.7);

Tailwind

colors: {
  custom: {
    50: '#6d5a9f',
    500: '#281c77',
    950: '#000000',
  },
}

SCSS

$custom: #281c77;
$custom-light: #6d5a9f;
$custom-dark: #000000;

JSON

{
  "hex": "#281c77",
  "rgb": {
    "r": 40,
    "g": 28,
    "b": 119
  },
  "hsl": {
    "h": 247.912,
    "s": 61.905,
    "l": 28.824
  },
  "oklch": {
    "l": 0.31159,
    "c": 0.14587,
    "h": 279.7
  },
  "luminance": 0.02614
}

Semantic roles & 50–950 ramp

primary

#281C77

secondary

#9DAB44

accent

#E543D0

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040F

muted

#7B797E

Preview Lab

Preview with #281C77

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

Preview Lab → · Contrast checker → · Palette generator →