#1D2A8B#1D2A8B

#1D2A8B is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.8% C 0.159 H 269.6°. Best body text is #FFFFFF at 11.96:1 contrast (WCAG AA passes).

Color values

HEX	#1D2A8B
RGB	rgb(29, 42, 139)
HSL	hsl(233, 65%, 33%)
HSV	hsv(233, 79%, 55%)
CMYK	cmyk(79.1%, 69.8%, 0%, 45.5%)
CIE-LAB	lab(22.93, 31.20, -55.07)
CIE-LCH	lch(22.93, 63.30, 299.53°)
OKLab	oklab(34.82% -0.0012 -0.1594)
OKLCH	oklch(34.82% 0.159 269.6)
XYZ	xyz(5.9933, 3.7806, 24.8349)
Luminance	0.0378 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2A8B #8B7E1D

analogous

#1D618B #1D2A8B #471D8B

triadic

#1D2A8B #8B1D2A #2A8B1D

tetradic

#1D2A8B #8B1D61 #8B7E1D #1D8B47

square

#1D2A8B #8B1D61 #8B7E1D #1D8B47

split-complementary

#1D2A8B #8B471D #618B1D

monochromatic

#080B26 #121B58 #1D2A8B #2839BE #495AD9

Accessibility & contrast

On white

11.96

#1D2A8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#1D2A8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2A8B

11.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2A8B	#FFFFFF	#000000	##FFFFFF
##1D2A8B	1.00	11.96	1.76	11.96
#FFFFFF	11.96	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C8E

Deuteranopia (green-blind)

#003189

Tritanopia (blue-blind)

#004557

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1d2a8b;
/* rgb */ color: rgb(29, 42, 139);
/* oklch */ color: oklch(34.8% 0.159 269.6);

Tailwind

colors: {
  custom: {
    50: '#6d64ae',
    500: '#1d2a8b',
    950: '#000000',
  },
}

SCSS

$custom: #1d2a8b;
$custom-light: #6d64ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2a8b",
  "rgb": {
    "r": 29,
    "g": 42,
    "b": 139
  },
  "hsl": {
    "h": 232.909,
    "s": 65.476,
    "l": 32.941
  },
  "oklch": {
    "l": 0.34823,
    "c": 0.15943,
    "h": 269.6
  },
  "luminance": 0.03781
}

Semantic roles & 50–950 ramp

primary

#1D2A8B

secondary

#BBAE49

accent

#D43FE8

background

#F7F5FA

surface

#EDEAF4

border

#C8C6CE

text

#080510

muted

#7B797F

Preview Lab

Preview with #1D2A8B

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

Preview Lab → · Contrast checker → · Palette generator →