#1D3197#1D3197

#1D3197 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.3% C 0.167 H 268.0°. Best body text is #FFFFFF at 10.83:1 contrast (WCAG AA passes).

Color values

HEX	#1D3197
RGB	rgb(29, 49, 151)
HSL	hsl(230, 68%, 35%)
HSV	hsv(230, 81%, 59%)
CMYK	cmyk(80.8%, 67.5%, 0%, 40.8%)
CIE-LAB	lab(25.84, 31.12, -57.72)
CIE-LCH	lch(25.84, 65.57, 298.33°)
OKLab	oklab(37.3% -0.0059 -0.1671)
OKLCH	oklch(37.3% 0.167 268)
XYZ	xyz(7.1890, 4.6914, 29.7988)
Luminance	0.0469 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3197 #97831D

analogous

#1D6E97 #1D3197 #461D97

triadic

#1D3197 #971D31 #31971D

tetradic

#1D3197 #971D6E #97831D #1D9746

square

#1D3197 #971D6E #97831D #1D9746

split-complementary

#1D3197 #97461D #6E971D

monochromatic

#091030 #132064 #1D3197 #2742CA #5168DE

Accessibility & contrast

On white

10.83

#1D3197 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#1D3197 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3197

10.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3197	#FFFFFF	#000000	##FFFFFF
##1D3197	1.00	10.83	1.94	10.83
#FFFFFF	10.83	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00439A

Deuteranopia (green-blind)

#003795

Tritanopia (blue-blind)

#004D5F

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1d3197;
/* rgb */ color: rgb(29, 49, 151);
/* oklch */ color: oklch(37.3% 0.167 268.0);

Tailwind

colors: {
  custom: {
    50: '#6f69b7',
    500: '#1d3197',
    950: '#000000',
  },
}

SCSS

$custom: #1d3197;
$custom-light: #6f69b7;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3197",
  "rgb": {
    "r": 29,
    "g": 49,
    "b": 151
  },
  "hsl": {
    "h": 230.164,
    "s": 67.778,
    "l": 35.294
  },
  "oklch": {
    "l": 0.37299,
    "c": 0.16722,
    "h": 268
  },
  "luminance": 0.04692
}

Semantic roles & 50–950 ramp

primary

#1D3197

secondary

#C0AE4F

accent

#CE3DEB

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #1D3197

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

Preview Lab → · Contrast checker → · Palette generator →