#283D62#283D62

#283D62 is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.1% C 0.070 H 261.1°. Best body text is #FFFFFF at 10.86:1 contrast (WCAG AA passes).

Color values

HEX	#283D62
RGB	rgb(40, 61, 98)
HSL	hsl(218, 42%, 27%)
HSV	hsv(218, 59%, 38%)
CMYK	cmyk(59.2%, 37.8%, 0%, 61.6%)
CIE-LAB	lab(25.77, 4.08, -24.41)
CIE-LCH	lch(25.77, 24.75, 279.50°)
OKLab	oklab(36.13% -0.0108 -0.069)
OKLCH	oklch(36.13% 0.07 261.1)
XYZ	xyz(4.7477, 4.6701, 12.2041)
Luminance	0.0467 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283D62 #624D28

analogous

#285A62 #283D62 #302862

triadic

#283D62 #62283D #3D6228

tetradic

#283D62 #62285A #624D28 #286230

square

#283D62 #62285A #624D28 #286230

split-complementary

#283D62 #623028 #5A6228

monochromatic

#090E16 #162237 #283D62 #3A588D #4E74B7

Accessibility & contrast

On white

10.86

#283D62 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#283D62 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283D62

10.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283D62	#FFFFFF	#000000	##FFFFFF
##283D62	1.00	10.86	1.93	10.86
#FFFFFF	10.86	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E4064

Deuteranopia (green-blind)

#273B61

Tritanopia (blue-blind)

#04454B

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #283d62;
/* rgb */ color: rgb(40, 61, 98);
/* oklch */ color: oklch(36.1% 0.070 261.1);

Tailwind

colors: {
  custom: {
    50: '#67728f',
    500: '#283d62',
    950: '#000000',
  },
}

SCSS

$custom: #283d62;
$custom-light: #67728f;
$custom-dark: #000000;

JSON

{
  "hex": "#283d62",
  "rgb": {
    "r": 40,
    "g": 61,
    "b": 98
  },
  "hsl": {
    "h": 218.276,
    "s": 42.029,
    "l": 27.059
  },
  "oklch": {
    "l": 0.36133,
    "c": 0.06982,
    "h": 261.1
  },
  "luminance": 0.0467
}

Semantic roles & 50–950 ramp

primary

#283D62

secondary

#957C51

accent

#A556D2

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06070C

muted

#7A7A7D

Preview Lab

Preview with #283D62

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

Preview Lab → · Contrast checker → · Palette generator →