#1D2278#1D2278

#1D2278 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.4% C 0.143 H 272.2°. Best body text is #FFFFFF at 13.53:1 contrast (WCAG AA passes).

Color values

HEX	#1D2278
RGB	rgb(29, 34, 120)
HSL	hsl(237, 61%, 29%)
HSV	hsv(237, 76%, 47%)
CMYK	cmyk(75.8%, 71.7%, 0%, 52.9%)
CIE-LAB	lab(19.06, 29.33, -49.45)
CIE-LCH	lch(19.06, 57.49, 300.67°)
OKLab	oklab(31.43% 0.0055 -0.143)
OKLCH	oklch(31.43% 0.143 272.2)
XYZ	xyz(4.4677, 2.7609, 18.0631)
Luminance	0.0276 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2278 #78731D

analogous

#1D5078 #1D2278 #461D78

triadic

#1D2278 #781D22 #22781D

tetradic

#1D2278 #781D50 #78731D #1D7846

square

#1D2278 #781D50 #78731D #1D7846

split-complementary

#1D2278 #78461D #50781D

monochromatic

#060719 #111447 #1D2278 #2930A9 #3F47D1

Accessibility & contrast

On white

13.53

#1D2278 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#1D2278 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2278

13.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2278	#FFFFFF	#000000	##FFFFFF
##1D2278	1.00	13.53	1.55	13.53
#FFFFFF	13.53	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00337B

Deuteranopia (green-blind)

#002A76

Tritanopia (blue-blind)

#003A4A

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1d2278;
/* rgb */ color: rgb(29, 34, 120);
/* oklch */ color: oklch(31.4% 0.143 272.2);

Tailwind

colors: {
  custom: {
    50: '#685da0',
    500: '#1d2278',
    950: '#000000',
  },
}

SCSS

$custom: #1d2278;
$custom-light: #685da0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2278",
  "rgb": {
    "r": 29,
    "g": 34,
    "b": 120
  },
  "hsl": {
    "h": 236.703,
    "s": 61.074,
    "l": 29.216
  },
  "oklch": {
    "l": 0.31434,
    "c": 0.14312,
    "h": 272.2
  },
  "luminance": 0.02761
}

Semantic roles & 50–950 ramp

primary

#1D2278

secondary

#ACA645

accent

#DB44E4

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07040F

muted

#7A797E

Preview Lab

Preview with #1D2278

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

Preview Lab → · Contrast checker → · Palette generator →