#1D2B8B#1D2B8B

#1D2B8B is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.0% C 0.158 H 269.4°. Best body text is #FFFFFF at 11.86:1 contrast (WCAG AA passes).

Color values

HEX	#1D2B8B
RGB	rgb(29, 43, 139)
HSL	hsl(232, 65%, 33%)
HSV	hsv(232, 79%, 55%)
CMYK	cmyk(79.1%, 69.1%, 0%, 45.5%)
CIE-LAB	lab(23.18, 30.54, -54.67)
CIE-LCH	lch(23.18, 62.62, 299.19°)
OKLab	oklab(35% -0.0018 -0.1582)
OKLCH	oklch(35% 0.158 269.4)
XYZ	xyz(6.0292, 3.8524, 24.8469)
Luminance	0.0385 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2B8B #8B7D1D

analogous

#1D628B #1D2B8B #461D8B

triadic

#1D2B8B #8B1D2B #2B8B1D

tetradic

#1D2B8B #8B1D62 #8B7D1D #1D8B46

square

#1D2B8B #8B1D62 #8B7D1D #1D8B46

split-complementary

#1D2B8B #8B461D #628B1D

monochromatic

#080C26 #121B58 #1D2B8B #283BBE #495CD9

Accessibility & contrast

On white

11.86

#1D2B8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#1D2B8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2B8B

11.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2B8B	#FFFFFF	#000000	##FFFFFF
##1D2B8B	1.00	11.86	1.77	11.86
#FFFFFF	11.86	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D8E

Deuteranopia (green-blind)

#003289

Tritanopia (blue-blind)

#004557

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1d2b8b;
/* rgb */ color: rgb(29, 43, 139);
/* oklch */ color: oklch(35.0% 0.158 269.4);

Tailwind

colors: {
  custom: {
    50: '#6d64ae',
    500: '#1d2b8b',
    950: '#000000',
  },
}

SCSS

$custom: #1d2b8b;
$custom-light: #6d64ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2b8b",
  "rgb": {
    "r": 29,
    "g": 43,
    "b": 139
  },
  "hsl": {
    "h": 232.364,
    "s": 65.476,
    "l": 32.941
  },
  "oklch": {
    "l": 0.35002,
    "c": 0.15826,
    "h": 269.4
  },
  "luminance": 0.03853
}

Semantic roles & 50–950 ramp

primary

#1D2B8B

secondary

#BBAD49

accent

#D33FE8

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080510

muted

#7B7A7F

Preview Lab

Preview with #1D2B8B

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

Preview Lab → · Contrast checker → · Palette generator →