#1D2156#1D2156

#1D2156 is a dark, moderate blue. Relative luminance 0.020; OKLCH L 27.9% C 0.095 H 275.2°. Best body text is #FFFFFF at 14.96:1 contrast (WCAG AA passes).

Color values

HEX	#1D2156
RGB	rgb(29, 33, 86)
HSL	hsl(236, 50%, 23%)
HSV	hsv(236, 66%, 34%)
CMYK	cmyk(66.3%, 61.6%, 0%, 66.3%)
CIE-LAB	lab(15.60, 16.93, -32.80)
CIE-LCH	lch(15.60, 36.92, 297.30°)
OKLab	oklab(27.91% 0.0085 -0.0942)
OKLCH	oklch(27.91% 0.095 275.2)
XYZ	xyz(2.7297, 2.0206, 9.0485)
Luminance	0.0202 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2156 #56521D

analogous

#1D3E56 #1D2156 #351D56

triadic

#1D2156 #561D21 #21561D

tetradic

#1D2156 #561D3E #56521D #1D5635

square

#1D2156 #561D3E #56521D #1D5635

split-complementary

#1D2156 #56351D #3E561D

monochromatic

#080917 #0E0F28 #1D2156 #2C3384 #3C44B2

Accessibility & contrast

On white

14.96

#1D2156 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#1D2156 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2156

14.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2156	#FFFFFF	#000000	##FFFFFF
##1D2156	1.00	14.96	1.40	14.96
#FFFFFF	14.96	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	14.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002958

Deuteranopia (green-blind)

#002555

Tritanopia (blue-blind)

#002E37

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #1d2156;
/* rgb */ color: rgb(29, 33, 86);
/* oklch */ color: oklch(27.9% 0.095 275.2);

Tailwind

colors: {
  custom: {
    50: '#605c86',
    500: '#1d2156',
    950: '#000000',
  },
}

SCSS

$custom: #1d2156;
$custom-light: #605c86;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2156",
  "rgb": {
    "r": 29,
    "g": 33,
    "b": 86
  },
  "hsl": {
    "h": 235.789,
    "s": 49.565,
    "l": 22.549
  },
  "oklch": {
    "l": 0.27907,
    "c": 0.09461,
    "h": 275.2
  },
  "luminance": 0.02021
}

Semantic roles & 50–950 ramp

primary

#1D2156

secondary

#8B8644

accent

#CF4FD9

background

#F5F5F8

surface

#EAE9EF

border

#C6C5CA

text

#05040B

muted

#79797C

Preview Lab

Preview with #1D2156

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

Preview Lab → · Contrast checker → · Palette generator →