#1D1978#1D1978

#1D1978 is a dark, vivid blue. Relative luminance 0.023; OKLCH L 30.0% C 0.153 H 273.9°. Best body text is #FFFFFF at 14.36:1 contrast (WCAG AA passes).

Color values

HEX	#1D1978
RGB	rgb(29, 25, 120)
HSL	hsl(243, 66%, 28%)
HSV	hsv(243, 79%, 47%)
CMYK	cmyk(75.8%, 79.2%, 0%, 52.9%)
CIE-LAB	lab(17.05, 34.93, -52.77)
CIE-LCH	lch(17.05, 63.28, 303.51°)
OKLab	oklab(30% 0.0105 -0.1526)
OKLCH	oklch(30% 0.153 273.9)
XYZ	xyz(4.2434, 2.3121, 17.9883)
Luminance	0.0231 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1978 #747819

analogous

#194478 #1D1978 #4C1978

triadic

#1D1978 #781D19 #19781D

tetradic

#1D1978 #781944 #747819 #19784C

square

#1D1978 #781944 #747819 #19784C

split-complementary

#1D1978 #784C19 #447819

monochromatic

#060519 #110E45 #1D1978 #2924AB #3D36D5

Accessibility & contrast

On white

14.36

#1D1978 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#1D1978 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1978

14.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1978	#FFFFFF	#000000	##FFFFFF
##1D1978	1.00	14.36	1.46	14.36
#FFFFFF	14.36	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E7B

Deuteranopia (green-blind)

#002576

Tritanopia (blue-blind)

#003547

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #1d1978;
/* rgb */ color: rgb(29, 25, 120);
/* oklch */ color: oklch(30.0% 0.153 273.9);

Tailwind

colors: {
  custom: {
    50: '#6957a0',
    500: '#1d1978',
    950: '#000000',
  },
}

SCSS

$custom: #1d1978;
$custom-light: #6957a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1978",
  "rgb": {
    "r": 29,
    "g": 25,
    "b": 120
  },
  "hsl": {
    "h": 242.526,
    "s": 65.517,
    "l": 28.431
  },
  "oklch": {
    "l": 0.29997,
    "c": 0.153,
    "h": 273.9
  },
  "luminance": 0.02313
}

Semantic roles & 50–950 ramp

primary

#1D1978

secondary

#A8AD40

accent

#E83FE1

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#07030F

muted

#7A787F

Preview Lab

Preview with #1D1978

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

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