#1D138A#1D138A

#1D138A is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.4% C 0.180 H 272.5°. Best body text is #FFFFFF at 13.89:1 contrast (WCAG AA passes).

Color values

HEX	#1D138A
RGB	rgb(29, 19, 138)
HSL	hsl(245, 76%, 31%)
HSV	hsv(245, 86%, 54%)
CMYK	cmyk(79%, 86.2%, 0%, 45.9%)
CIE-LAB	lab(18.19, 43.94, -62.28)
CIE-LCH	lch(18.19, 76.22, 305.20°)
OKLab	oklab(31.44% 0.008 -0.1801)
OKLCH	oklch(31.44% 0.18 272.5)
XYZ	xyz(5.3255, 2.5614, 24.2536)
Luminance	0.0256 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D138A #808A13

analogous

#13448A #1D138A #58138A

triadic

#1D138A #8A1D13 #138A1D

tetradic

#1D138A #8A1344 #808A13 #138A58

square

#1D138A #8A1344 #808A13 #138A58

split-complementary

#1D138A #8A5813 #448A13

monochromatic

#06041E #120C54 #1D138A #281AC0 #4334E3

Accessibility & contrast

On white

13.89

#1D138A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#1D138A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D138A

13.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D138A	#FFFFFF	#000000	##FFFFFF
##1D138A	1.00	13.89	1.51	13.89
#FFFFFF	13.89	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00328D

Deuteranopia (green-blind)

#002788

Tritanopia (blue-blind)

#003A51

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #1d138a;
/* rgb */ color: rgb(29, 19, 138);
/* oklch */ color: oklch(31.4% 0.180 272.5);

Tailwind

colors: {
  custom: {
    50: '#6f56ae',
    500: '#1d138a',
    950: '#000000',
  },
}

SCSS

$custom: #1d138a;
$custom-light: #6f56ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1d138a",
  "rgb": {
    "r": 29,
    "g": 19,
    "b": 138
  },
  "hsl": {
    "h": 245.042,
    "s": 75.796,
    "l": 30.784
  },
  "oklch": {
    "l": 0.31435,
    "c": 0.18032,
    "h": 272.5
  },
  "luminance": 0.02562
}

Semantic roles & 50–950 ramp

primary

#1D138A

secondary

#B3BE3A

accent

#F235E3

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090310

muted

#7B787F

Preview Lab

Preview with #1D138A

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

Preview Lab → · Contrast checker → · Palette generator →