#1D3887#1D3887

#1D3887 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.2% C 0.136 H 265.7°. Best body text is #FFFFFF at 10.67:1 contrast (WCAG AA passes).

Color values

HEX	#1D3887
RGB	rgb(29, 56, 135)
HSL	hsl(225, 65%, 32%)
HSV	hsv(225, 79%, 53%)
CMYK	cmyk(78.5%, 58.5%, 0%, 47.1%)
CIE-LAB	lab(26.27, 20.08, -47.12)
CIE-LCH	lch(26.27, 51.22, 293.08°)
OKLab	oklab(37.18% -0.0103 -0.136)
OKLCH	oklch(37.18% 0.136 265.7)
XYZ	xyz(6.2925, 4.8381, 23.5192)
Luminance	0.0484 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3887 #876C1D

analogous

#1D6D87 #1D3887 #371D87

triadic

#1D3887 #871D38 #38871D

tetradic

#1D3887 #871D6D #876C1D #1D8737

square

#1D3887 #871D6D #876C1D #1D8737

split-complementary

#1D3887 #87371D #6D871D

monochromatic

#070E22 #122355 #1D3887 #284DB9 #476CD7

Accessibility & contrast

On white

10.67

#1D3887 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#1D3887 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3887

10.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3887	#FFFFFF	#000000	##FFFFFF
##1D3887	1.00	10.67	1.97	10.67
#FFFFFF	10.67	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00438A

Deuteranopia (green-blind)

#003985

Tritanopia (blue-blind)

#004C59

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1d3887;
/* rgb */ color: rgb(29, 56, 135);
/* oklch */ color: oklch(37.2% 0.136 265.7);

Tailwind

colors: {
  custom: {
    50: '#6a6eab',
    500: '#1d3887',
    950: '#000000',
  },
}

SCSS

$custom: #1d3887;
$custom-light: #6a6eab;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3887",
  "rgb": {
    "r": 29,
    "g": 56,
    "b": 135
  },
  "hsl": {
    "h": 224.717,
    "s": 64.634,
    "l": 32.157
  },
  "oklch": {
    "l": 0.37178,
    "c": 0.13638,
    "h": 265.7
  },
  "luminance": 0.04839
}

Semantic roles & 50–950 ramp

primary

#1D3887

secondary

#B99C46

accent

#BD40E8

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #1D3887

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

Preview Lab → · Contrast checker → · Palette generator →