#1D235A#1D235A

#1D235A is a dark, moderate blue. Relative luminance 0.022; OKLCH L 28.7% C 0.098 H 273.8°. Best body text is #FFFFFF at 14.58:1 contrast (WCAG AA passes).

Color values

HEX	#1D235A
RGB	rgb(29, 35, 90)
HSL	hsl(234, 51%, 23%)
HSV	hsv(234, 68%, 35%)
CMYK	cmyk(67.8%, 61.1%, 0%, 64.7%)
CIE-LAB	lab(16.51, 17.05, -34.00)
CIE-LCH	lch(16.51, 38.04, 296.63°)
OKLab	oklab(28.69% 0.0065 -0.0977)
OKLCH	oklch(28.69% 0.098 273.8)
XYZ	xyz(2.9526, 2.2012, 9.9402)
Luminance	0.0220 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D235A #5A541D

analogous

#1D415A #1D235A #351D5A

triadic

#1D235A #5A1D23 #235A1D

tetradic

#1D235A #5A1D41 #5A541D #1D5A35

square

#1D235A #5A1D41 #5A541D #1D5A35

split-complementary

#1D235A #5A351D #415A1D

monochromatic

#070917 #0E112C #1D235A #2C3588 #3B47B7

Accessibility & contrast

On white

14.58

#1D235A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#1D235A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D235A

14.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D235A	#FFFFFF	#000000	##FFFFFF
##1D235A	1.00	14.58	1.44	14.58
#FFFFFF	14.58	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C5C

Deuteranopia (green-blind)

#002659

Tritanopia (blue-blind)

#00303A

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #1d235a;
/* rgb */ color: rgb(29, 35, 90);
/* oklch */ color: oklch(28.7% 0.098 273.8);

Tailwind

colors: {
  custom: {
    50: '#615d89',
    500: '#1d235a',
    950: '#000000',
  },
}

SCSS

$custom: #1d235a;
$custom-light: #615d89;
$custom-dark: #000000;

JSON

{
  "hex": "#1d235a",
  "rgb": {
    "r": 29,
    "g": 35,
    "b": 90
  },
  "hsl": {
    "h": 234.098,
    "s": 51.261,
    "l": 23.333
  },
  "oklch": {
    "l": 0.28694,
    "c": 0.09794,
    "h": 273.8
  },
  "luminance": 0.02201
}

Semantic roles & 50–950 ramp

primary

#1D235A

secondary

#8F8844

accent

#CD4DDB

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#05040B

muted

#7A797C

Preview Lab

Preview with #1D235A

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

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