#281E71#281E71

#281E71 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 30.8% C 0.136 H 280.3°. Best body text is #FFFFFF at 13.87:1 contrast (WCAG AA passes).

Color values

HEX	#281E71
RGB	rgb(40, 30, 113)
HSL	hsl(247, 58%, 28%)
HSV	hsv(247, 73%, 44%)
CMYK	cmyk(64.6%, 73.5%, 0%, 55.7%)
CIE-LAB	lab(18.24, 30.84, -46.26)
CIE-LCH	lch(18.24, 55.60, 303.69°)
OKLab	oklab(30.84% 0.0243 -0.1334)
OKLCH	oklch(30.84% 0.136 280.3)
XYZ	xyz(4.3190, 2.5716, 15.8884)
Luminance	0.0257 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281E71 #67711E

analogous

#1E3D71 #281E71 #511E71

triadic

#281E71 #71281E #1E7128

tetradic

#281E71 #711E3D #67711E #1E7151

square

#281E71 #711E3D #67711E #1E7151

split-complementary

#281E71 #71511E #3D711E

monochromatic

#090618 #171141 #281E71 #392BA1 #4F3ECC

Accessibility & contrast

On white

13.87

#281E71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#281E71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281E71

13.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281E71	#FFFFFF	#000000	##FFFFFF
##281E71	1.00	13.87	1.51	13.87
#FFFFFF	13.87	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003073

Deuteranopia (green-blind)

#00296F

Tritanopia (blue-blind)

#003445

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #281e71;
/* rgb */ color: rgb(40, 30, 113);
/* oklch */ color: oklch(30.8% 0.136 280.3);

Tailwind

colors: {
  custom: {
    50: '#6c5b9b',
    500: '#281e71',
    950: '#000000',
  },
}

SCSS

$custom: #281e71;
$custom-light: #6c5b9b;
$custom-dark: #000000;

JSON

{
  "hex": "#281e71",
  "rgb": {
    "r": 40,
    "g": 30,
    "b": 113
  },
  "hsl": {
    "h": 247.229,
    "s": 58.042,
    "l": 28.039
  },
  "oklch": {
    "l": 0.30842,
    "c": 0.13558,
    "h": 280.3
  },
  "luminance": 0.02572
}

Semantic roles & 50–950 ramp

primary

#281E71

secondary

#9AA546

accent

#E147CF

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#08040E

muted

#7A797E

Preview Lab

Preview with #281E71

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

Preview Lab → · Contrast checker → · Palette generator →