#1E37A7#1E37A7

#1E37A7 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.0% C 0.181 H 267.2°. Best body text is #FFFFFF at 9.72:1 contrast (WCAG AA passes).

Color values

HEX	#1E37A7
RGB	rgb(30, 55, 167)
HSL	hsl(229, 70%, 39%)
HSV	hsv(229, 82%, 65%)
CMYK	cmyk(82%, 67.1%, 0%, 34.5%)
CIE-LAB	lab(28.90, 33.31, -62.41)
CIE-LCH	lch(28.90, 70.75, 298.09°)
OKLab	oklab(40.02% -0.009 -0.1808)
OKLCH	oklch(40.02% 0.181 267.2)
XYZ	xyz(8.8742, 5.7974, 37.2030)
Luminance	0.0580 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E37A7 #A78E1E

analogous

#1E7BA7 #1E37A7 #491EA7

triadic

#1E37A7 #A71E37 #37A71E

tetradic

#1E37A7 #A71E7B #A78E1E #1EA749

square

#1E37A7 #A71E7B #A78E1E #1EA749

split-complementary

#1E37A7 #A7491E #7BA71E

monochromatic

#0B153F #152673 #1E37A7 #2A49D9 #5D76E2

Accessibility & contrast

On white

9.72

#1E37A7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#1E37A7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E37A7

9.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E37A7	#FFFFFF	#000000	##FFFFFF
##1E37A7	1.00	9.72	2.16	9.72
#FFFFFF	9.72	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BAB

Deuteranopia (green-blind)

#003EA5

Tritanopia (blue-blind)

#00556A

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1e37a7;
/* rgb */ color: rgb(30, 55, 167);
/* oklch */ color: oklch(40.0% 0.181 267.2);

Tailwind

colors: {
  custom: {
    50: '#736dc2',
    500: '#1e37a7',
    950: '#000000',
  },
}

SCSS

$custom: #1e37a7;
$custom-light: #736dc2;
$custom-dark: #000000;

JSON

{
  "hex": "#1e37a7",
  "rgb": {
    "r": 30,
    "g": 55,
    "b": 167
  },
  "hsl": {
    "h": 229.051,
    "s": 69.543,
    "l": 38.627
  },
  "oklch": {
    "l": 0.40015,
    "c": 0.181,
    "h": 267.2
  },
  "luminance": 0.05798
}

Semantic roles & 50–950 ramp

primary

#1E37A7

secondary

#C6B35B

accent

#CC3BEC

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #1E37A7

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

Preview Lab → · Contrast checker → · Palette generator →