#1D2383#1D2383

#1D2383 is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.8% C 0.157 H 271.3°. Best body text is #FFFFFF at 12.96:1 contrast (WCAG AA passes).

Color values

HEX	#1D2383
RGB	rgb(29, 35, 131)
HSL	hsl(236, 64%, 31%)
HSV	hsv(236, 78%, 51%)
CMYK	cmyk(77.9%, 73.3%, 0%, 48.6%)
CIE-LAB	lab(20.45, 32.76, -54.15)
CIE-LCH	lch(20.45, 63.29, 301.17°)
OKLab	oklab(32.78% 0.0034 -0.1567)
OKLCH	oklch(32.78% 0.157 271.3)
XYZ	xyz(5.2031, 3.1014, 21.7927)
Luminance	0.0310 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2383 #837D1D

analogous

#1D5683 #1D2383 #4A1D83

triadic

#1D2383 #831D23 #23831D

tetradic

#1D2383 #831D56 #837D1D #1D834A

square

#1D2383 #831D56 #837D1D #1D834A

split-complementary

#1D2383 #834A1D #56831D

monochromatic

#07081F #121651 #1D2383 #2830B5 #454DD6

Accessibility & contrast

On white

12.96

#1D2383 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#1D2383 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2383

12.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2383	#FFFFFF	#000000	##FFFFFF
##1D2383	1.00	12.96	1.62	12.96
#FFFFFF	12.96	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003686

Deuteranopia (green-blind)

#002C81

Tritanopia (blue-blind)

#003E50

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1d2383;
/* rgb */ color: rgb(29, 35, 131);
/* oklch */ color: oklch(32.8% 0.157 271.3);

Tailwind

colors: {
  custom: {
    50: '#6b5ea8',
    500: '#1d2383',
    950: '#000000',
  },
}

SCSS

$custom: #1d2383;
$custom-light: #6b5ea8;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2383",
  "rgb": {
    "r": 29,
    "g": 35,
    "b": 131
  },
  "hsl": {
    "h": 236.471,
    "s": 63.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.32778,
    "c": 0.15679,
    "h": 271.3
  },
  "luminance": 0.03102
}

Semantic roles & 50–950 ramp

primary

#1D2383

secondary

#B6AF46

accent

#DD41E7

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1D2383

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

Preview Lab → · Contrast checker → · Palette generator →