#1D2B8D#1D2B8D

#1D2B8D is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.2% C 0.161 H 269.3°. Best body text is #FFFFFF at 11.78:1 contrast (WCAG AA passes).

Color values

HEX	#1D2B8D
RGB	rgb(29, 43, 141)
HSL	hsl(233, 66%, 33%)
HSV	hsv(233, 79%, 55%)
CMYK	cmyk(79.4%, 69.5%, 0%, 44.7%)
CIE-LAB	lab(23.38, 31.29, -55.59)
CIE-LCH	lch(23.38, 63.79, 299.38°)
OKLab	oklab(35.21% -0.0019 -0.1609)
OKLCH	oklch(35.21% 0.161 269.3)
XYZ	xyz(6.1766, 3.9114, 25.6236)
Luminance	0.0391 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2B8D #8D7F1D

analogous

#1D638D #1D2B8D #471D8D

triadic

#1D2B8D #8D1D2B #2B8D1D

tetradic

#1D2B8D #8D1D63 #8D7F1D #1D8D47

square

#1D2B8D #8D1D63 #8D7F1D #1D8D47

split-complementary

#1D2B8D #8D471D #638D1D

monochromatic

#080C27 #131C5A #1D2B8D #273AC0 #4B5CDA

Accessibility & contrast

On white

11.78

#1D2B8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#1D2B8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2B8D

11.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2B8D	#FFFFFF	#000000	##FFFFFF
##1D2B8D	1.00	11.78	1.78	11.78
#FFFFFF	11.78	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D90

Deuteranopia (green-blind)

#00328B

Tritanopia (blue-blind)

#004658

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1d2b8d;
/* rgb */ color: rgb(29, 43, 141);
/* oklch */ color: oklch(35.2% 0.161 269.3);

Tailwind

colors: {
  custom: {
    50: '#6d64af',
    500: '#1d2b8d',
    950: '#000000',
  },
}

SCSS

$custom: #1d2b8d;
$custom-light: #6d64af;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2b8d",
  "rgb": {
    "r": 29,
    "g": 43,
    "b": 141
  },
  "hsl": {
    "h": 232.5,
    "s": 65.882,
    "l": 33.333
  },
  "oklch": {
    "l": 0.35207,
    "c": 0.16094,
    "h": 269.3
  },
  "luminance": 0.03912
}

Semantic roles & 50–950 ramp

primary

#1D2B8D

secondary

#BCAE4A

accent

#D43FE9

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080511

muted

#7B7A80

Preview Lab

Preview with #1D2B8D

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

Preview Lab → · Contrast checker → · Palette generator →