#281D77#281D77

#281D77 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.3% C 0.145 H 279.5°. Best body text is #FFFFFF at 13.70:1 contrast (WCAG AA passes).

Color values

HEX	#281D77
RGB	rgb(40, 29, 119)
HSL	hsl(247, 61%, 29%)
HSV	hsv(247, 76%, 47%)
CMYK	cmyk(66.4%, 75.6%, 0%, 53.3%)
CIE-LAB	lab(18.63, 33.50, -49.48)
CIE-LCH	lch(18.63, 59.75, 304.10°)
OKLab	oklab(31.31% 0.0239 -0.1428)
OKLCH	oklch(31.31% 0.145 279.5)
XYZ	xyz(4.6431, 2.6614, 17.7182)
Luminance	0.0266 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281D77 #6C771D

analogous

#1D3F77 #281D77 #551D77

triadic

#281D77 #77281D #1D7728

tetradic

#281D77 #771D3F #6C771D #1D7755

square

#281D77 #771D3F #6C771D #1D7755

split-complementary

#281D77 #77551D #3F771D

monochromatic

#080619 #171146 #281D77 #3929A8 #503ED0

Accessibility & contrast

On white

13.70

#281D77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#281D77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281D77

13.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281D77	#FFFFFF	#000000	##FFFFFF
##281D77	1.00	13.70	1.53	13.70
#FFFFFF	13.70	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00317A

Deuteranopia (green-blind)

#002A75

Tritanopia (blue-blind)

#003648

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #281d77;
/* rgb */ color: rgb(40, 29, 119);
/* oklch */ color: oklch(31.3% 0.145 279.5);

Tailwind

colors: {
  custom: {
    50: '#6d5b9f',
    500: '#281d77',
    950: '#000000',
  },
}

SCSS

$custom: #281d77;
$custom-light: #6d5b9f;
$custom-dark: #000000;

JSON

{
  "hex": "#281d77",
  "rgb": {
    "r": 40,
    "g": 29,
    "b": 119
  },
  "hsl": {
    "h": 247.333,
    "s": 60.811,
    "l": 29.02
  },
  "oklch": {
    "l": 0.31309,
    "c": 0.14477,
    "h": 279.5
  },
  "luminance": 0.02662
}

Semantic roles & 50–950 ramp

primary

#281D77

secondary

#9EAB45

accent

#E444D0

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040F

muted

#7B797E

Preview Lab

Preview with #281D77

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

Preview Lab → · Contrast checker → · Palette generator →