#1D3185#1D3185

#1D3185 is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.6% C 0.143 H 267.9°. Best body text is #FFFFFF at 11.47:1 contrast (WCAG AA passes).

Color values

HEX	#1D3185
RGB	rgb(29, 49, 133)
HSL	hsl(228, 64%, 32%)
HSV	hsv(228, 78%, 52%)
CMYK	cmyk(78.2%, 63.2%, 0%, 47.8%)
CIE-LAB	lab(24.16, 24.15, -49.31)
CIE-LCH	lch(24.16, 54.91, 296.10°)
OKLab	oklab(35.55% -0.0052 -0.1425)
OKLCH	oklch(35.55% 0.143 267.9)
XYZ	xyz(5.8372, 4.1506, 22.6793)
Luminance	0.0415 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3185 #85711D

analogous

#1D6585 #1D3185 #3D1D85

triadic

#1D3185 #851D31 #31851D

tetradic

#1D3185 #851D65 #85711D #1D853D

square

#1D3185 #851D65 #85711D #1D853D

split-complementary

#1D3185 #853D1D #65851D

monochromatic

#070C21 #121E53 #1D3185 #2844B7 #4662D7

Accessibility & contrast

On white

11.47

#1D3185 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#1D3185 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3185

11.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3185	#FFFFFF	#000000	##FFFFFF
##1D3185	1.00	11.47	1.83	11.47
#FFFFFF	11.47	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E88

Deuteranopia (green-blind)

#003583

Tritanopia (blue-blind)

#004756

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1d3185;
/* rgb */ color: rgb(29, 49, 133);
/* oklch */ color: oklch(35.6% 0.143 267.9);

Tailwind

colors: {
  custom: {
    50: '#6a68a9',
    500: '#1d3185',
    950: '#000000',
  },
}

SCSS

$custom: #1d3185;
$custom-light: #6a68a9;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3185",
  "rgb": {
    "r": 29,
    "g": 49,
    "b": 133
  },
  "hsl": {
    "h": 228.462,
    "s": 64.198,
    "l": 31.765
  },
  "oklch": {
    "l": 0.35553,
    "c": 0.1426,
    "h": 267.9
  },
  "luminance": 0.04151
}

Semantic roles & 50–950 ramp

primary

#1D3185

secondary

#B8A246

accent

#C741E7

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080610

muted

#7A7A7F

Preview Lab

Preview with #1D3185

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

Preview Lab → · Contrast checker → · Palette generator →