#1D2779#1D2779

#1D2779 is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.4% C 0.138 H 270.9°. Best body text is #FFFFFF at 12.97:1 contrast (WCAG AA passes).

Color values

HEX	#1D2779
RGB	rgb(29, 39, 121)
HSL	hsl(233, 61%, 29%)
HSV	hsv(233, 76%, 47%)
CMYK	cmyk(76%, 67.8%, 0%, 52.5%)
CIE-LAB	lab(20.41, 26.35, -47.87)
CIE-LCH	lch(20.41, 54.64, 298.83°)
OKLab	oklab(32.45% 0.0021 -0.1384)
OKLCH	oklch(32.45% 0.138 270.9)
XYZ	xyz(4.6822, 3.0922, 18.4356)
Luminance	0.0309 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2779 #796F1D

analogous

#1D5579 #1D2779 #411D79

triadic

#1D2779 #791D27 #27791D

tetradic

#1D2779 #791D55 #796F1D #1D7941

square

#1D2779 #791D55 #796F1D #1D7941

split-complementary

#1D2779 #79411D #55791D

monochromatic

#060819 #111748 #1D2779 #2937AA #3F4FD1

Accessibility & contrast

On white

12.97

#1D2779 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#1D2779 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2779

12.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2779	#FFFFFF	#000000	##FFFFFF
##1D2779	1.00	12.97	1.62	12.97
#FFFFFF	12.97	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00367C

Deuteranopia (green-blind)

#002D77

Tritanopia (blue-blind)

#003D4C

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1d2779;
/* rgb */ color: rgb(29, 39, 121);
/* oklch */ color: oklch(32.4% 0.138 270.9);

Tailwind

colors: {
  custom: {
    50: '#6861a1',
    500: '#1d2779',
    950: '#000000',
  },
}

SCSS

$custom: #1d2779;
$custom-light: #6861a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2779",
  "rgb": {
    "r": 29,
    "g": 39,
    "b": 121
  },
  "hsl": {
    "h": 233.478,
    "s": 61.333,
    "l": 29.412
  },
  "oklch": {
    "l": 0.32445,
    "c": 0.1384,
    "h": 270.9
  },
  "luminance": 0.03093
}

Semantic roles & 50–950 ramp

primary

#1D2779

secondary

#ADA245

accent

#D343E4

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#07050F

muted

#7A797F

Preview Lab

Preview with #1D2779

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

Preview Lab → · Contrast checker → · Palette generator →