#1D2E8A#1D2E8A

#1D2E8A is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.5% C 0.153 H 268.7°. Best body text is #FFFFFF at 11.60:1 contrast (WCAG AA passes).

Color values

HEX	#1D2E8A
RGB	rgb(29, 46, 138)
HSL	hsl(231, 65%, 33%)
HSV	hsv(231, 79%, 54%)
CMYK	cmyk(79%, 66.7%, 0%, 45.9%)
CIE-LAB	lab(23.83, 28.15, -52.97)
CIE-LCH	lch(23.83, 59.99, 297.99°)
OKLab	oklab(35.45% -0.0034 -0.1533)
OKLCH	oklch(35.45% 0.153 268.7)
XYZ	xyz(6.0696, 4.0495, 24.5016)
Luminance	0.0405 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2E8A #8A791D

analogous

#1D648A #1D2E8A #421D8A

triadic

#1D2E8A #8A1D2E #2E8A1D

tetradic

#1D2E8A #8A1D64 #8A791D #1D8A42

square

#1D2E8A #8A1D64 #8A791D #1D8A42

split-complementary

#1D2E8A #8A421D #648A1D

monochromatic

#080C25 #121D57 #1D2E8A #283FBD #495FD9

Accessibility & contrast

On white

11.60

#1D2E8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#1D2E8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2E8A

11.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2E8A	#FFFFFF	#000000	##FFFFFF
##1D2E8A	1.00	11.60	1.81	11.60
#FFFFFF	11.60	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E8D

Deuteranopia (green-blind)

#003488

Tritanopia (blue-blind)

#004657

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1d2e8a;
/* rgb */ color: rgb(29, 46, 138);
/* oklch */ color: oklch(35.5% 0.153 268.7);

Tailwind

colors: {
  custom: {
    50: '#6c66ad',
    500: '#1d2e8a',
    950: '#000000',
  },
}

SCSS

$custom: #1d2e8a;
$custom-light: #6c66ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2e8a",
  "rgb": {
    "r": 29,
    "g": 46,
    "b": 138
  },
  "hsl": {
    "h": 230.642,
    "s": 65.269,
    "l": 32.745
  },
  "oklch": {
    "l": 0.35452,
    "c": 0.1533,
    "h": 268.7
  },
  "luminance": 0.0405
}

Semantic roles & 50–950 ramp

primary

#1D2E8A

secondary

#BBA948

accent

#CE40E8

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #1D2E8A

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

Preview Lab → · Contrast checker → · Palette generator →