#1D2B56#1D2B56

#1D2B56 is a dark, moderate blue. Relative luminance 0.027; OKLCH L 30.2% C 0.080 H 267.9°. Best body text is #FFFFFF at 13.71:1 contrast (WCAG AA passes).

Color values

HEX	#1D2B56
RGB	rgb(29, 43, 86)
HSL	hsl(225, 50%, 23%)
HSV	hsv(225, 66%, 34%)
CMYK	cmyk(66.3%, 50%, 0%, 66.3%)
CIE-LAB	lab(18.63, 9.62, -27.91)
CIE-LCH	lch(18.63, 29.52, 289.01°)
OKLab	oklab(30.2% -0.003 -0.0797)
OKLCH	oklch(30.2% 0.08 267.9)
XYZ	xyz(3.0497, 2.6606, 9.1551)
Luminance	0.0266 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2B56 #56481D

analogous

#1D4856 #1D2B56 #2B1D56

triadic

#1D2B56 #561D2B #2B561D

tetradic

#1D2B56 #561D48 #56481D #1D562B

square

#1D2B56 #561D48 #56481D #1D562B

split-complementary

#1D2B56 #562B1D #48561D

monochromatic

#080B17 #0E1428 #1D2B56 #2C4284 #3C59B2

Accessibility & contrast

On white

13.71

#1D2B56 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#1D2B56 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2B56

13.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2B56	#FFFFFF	#000000	##FFFFFF
##1D2B56	1.00	13.71	1.53	13.71
#FFFFFF	13.71	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#163058

Deuteranopia (green-blind)

#0D2B55

Tritanopia (blue-blind)

#00353C

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1d2b56;
/* rgb */ color: rgb(29, 43, 86);
/* oklch */ color: oklch(30.2% 0.080 267.9);

Tailwind

colors: {
  custom: {
    50: '#5f6386',
    500: '#1d2b56',
    950: '#000000',
  },
}

SCSS

$custom: #1d2b56;
$custom-light: #5f6386;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2b56",
  "rgb": {
    "r": 29,
    "g": 43,
    "b": 86
  },
  "hsl": {
    "h": 225.263,
    "s": 49.565,
    "l": 22.549
  },
  "oklch": {
    "l": 0.30198,
    "c": 0.07976,
    "h": 267.9
  },
  "luminance": 0.02661
}

Semantic roles & 50–950 ramp

primary

#1D2B56

secondary

#8B7A44

accent

#B74FD9

background

#F5F5F8

surface

#EAEAEF

border

#C6C6CA

text

#05050B

muted

#79797C

Preview Lab

Preview with #1D2B56

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

Preview Lab → · Contrast checker → · Palette generator →