#1D1979#1D1979

#1D1979 is a dark, vivid blue. Relative luminance 0.023; OKLCH L 30.1% C 0.154 H 273.8°. Best body text is #FFFFFF at 14.31:1 contrast (WCAG AA passes).

Color values

HEX	#1D1979
RGB	rgb(29, 25, 121)
HSL	hsl(243, 66%, 29%)
HSV	hsv(243, 79%, 47%)
CMYK	cmyk(76%, 79.3%, 0%, 52.5%)
CIE-LAB	lab(17.16, 35.28, -53.22)
CIE-LCH	lch(17.16, 63.85, 303.54°)
OKLab	oklab(30.11% 0.0102 -0.1539)
OKLCH	oklch(30.11% 0.154 273.8)
XYZ	xyz(4.3044, 2.3365, 18.3096)
Luminance	0.0234 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1979 #757919

analogous

#194579 #1D1979 #4D1979

triadic

#1D1979 #791D19 #19791D

tetradic

#1D1979 #791945 #757919 #19794D

square

#1D1979 #791945 #757919 #19794D

split-complementary

#1D1979 #794D19 #457919

monochromatic

#060519 #110F46 #1D1979 #2923AC #3D37D6

Accessibility & contrast

On white

14.31

#1D1979 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#1D1979 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1979

14.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1979	#FFFFFF	#000000	##FFFFFF
##1D1979	1.00	14.31	1.47	14.31
#FFFFFF	14.31	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F7C

Deuteranopia (green-blind)

#002677

Tritanopia (blue-blind)

#003648

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #1d1979;
/* rgb */ color: rgb(29, 25, 121);
/* oklch */ color: oklch(30.1% 0.154 273.8);

Tailwind

colors: {
  custom: {
    50: '#6a57a1',
    500: '#1d1979',
    950: '#000000',
  },
}

SCSS

$custom: #1d1979;
$custom-light: #6a57a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1979",
  "rgb": {
    "r": 29,
    "g": 25,
    "b": 121
  },
  "hsl": {
    "h": 242.5,
    "s": 65.753,
    "l": 28.627
  },
  "oklch": {
    "l": 0.30113,
    "c": 0.15429,
    "h": 273.8
  },
  "luminance": 0.02337
}

Semantic roles & 50–950 ramp

primary

#1D1979

secondary

#A9AE40

accent

#E93FE2

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#07030F

muted

#7A787F

Preview Lab

Preview with #1D1979

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

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