#1D1F79#1D1F79

#1D1F79 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.0% C 0.148 H 272.8°. Best body text is #FFFFFF at 13.78:1 contrast (WCAG AA passes).

Color values

HEX	#1D1F79
RGB	rgb(29, 31, 121)
HSL	hsl(239, 61%, 29%)
HSV	hsv(239, 76%, 47%)
CMYK	cmyk(76%, 74.4%, 0%, 52.5%)
CIE-LAB	lab(18.46, 31.64, -51.08)
CIE-LCH	lch(18.46, 60.08, 301.78°)
OKLab	oklab(31.03% 0.0071 -0.1478)
OKLCH	oklch(31.03% 0.148 272.8)
XYZ	xyz(4.4467, 2.6212, 18.3570)
Luminance	0.0262 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1F79 #79771D

analogous

#1D4D79 #1D1F79 #491D79

triadic

#1D1F79 #791D1F #1F791D

tetradic

#1D1F79 #791D4D #79771D #1D7949

square

#1D1F79 #791D4D #79771D #1D7949

split-complementary

#1D1F79 #79491D #4D791D

monochromatic

#060619 #111248 #1D1F79 #292CAA #3F43D1

Accessibility & contrast

On white

13.78

#1D1F79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#1D1F79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1F79

13.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1F79	#FFFFFF	#000000	##FFFFFF
##1D1F79	1.00	13.78	1.52	13.78
#FFFFFF	13.78	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00317C

Deuteranopia (green-blind)

#002977

Tritanopia (blue-blind)

#00384A

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1d1f79;
/* rgb */ color: rgb(29, 31, 121);
/* oklch */ color: oklch(31.0% 0.148 272.8);

Tailwind

colors: {
  custom: {
    50: '#695ba1',
    500: '#1d1f79',
    950: '#000000',
  },
}

SCSS

$custom: #1d1f79;
$custom-light: #695ba1;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1f79",
  "rgb": {
    "r": 29,
    "g": 31,
    "b": 121
  },
  "hsl": {
    "h": 238.696,
    "s": 61.333,
    "l": 29.412
  },
  "oklch": {
    "l": 0.31033,
    "c": 0.14794,
    "h": 272.8
  },
  "luminance": 0.02622
}

Semantic roles & 50–950 ramp

primary

#1D1F79

secondary

#ADAB45

accent

#E143E4

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#07040F

muted

#7A797F

Preview Lab

Preview with #1D1F79

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

Preview Lab → · Contrast checker → · Palette generator →