#1E31A8#1E31A8

#1E31A8 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 39.1% C 0.189 H 268.1°. Best body text is #FFFFFF at 10.19:1 contrast (WCAG AA passes).

Color values

HEX	#1E31A8
RGB	rgb(30, 49, 168)
HSL	hsl(232, 70%, 39%)
HSV	hsv(232, 82%, 66%)
CMYK	cmyk(82.1%, 70.8%, 0%, 34.1%)
CIE-LAB	lab(27.57, 37.53, -65.20)
CIE-LCH	lch(27.57, 75.23, 299.93°)
OKLab	oklab(39.08% -0.0063 -0.1889)
OKLCH	oklch(39.08% 0.189 268.1)
XYZ	xyz(8.6992, 5.2988, 37.6025)
Luminance	0.0530 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E31A8 #A8951E

analogous

#1E76A8 #1E31A8 #501EA8

triadic

#1E31A8 #A81E31 #31A81E

tetradic

#1E31A8 #A81E76 #A8951E #1EA850

square

#1E31A8 #A81E76 #A8951E #1EA850

split-complementary

#1E31A8 #A8501E #76A81E

monochromatic

#0B1340 #152274 #1E31A8 #2A42D9 #5E70E2

Accessibility & contrast

On white

10.19

#1E31A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#1E31A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E31A8

10.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E31A8	#FFFFFF	#000000	##FFFFFF
##1E31A8	1.00	10.19	2.06	10.19
#FFFFFF	10.19	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048AC

Deuteranopia (green-blind)

#003AA6

Tritanopia (blue-blind)

#005269

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1e31a8;
/* rgb */ color: rgb(30, 49, 168);
/* oklch */ color: oklch(39.1% 0.189 268.1);

Tailwind

colors: {
  custom: {
    50: '#7469c3',
    500: '#1e31a8',
    950: '#000000',
  },
}

SCSS

$custom: #1e31a8;
$custom-light: #7469c3;
$custom-dark: #000000;

JSON

{
  "hex": "#1e31a8",
  "rgb": {
    "r": 30,
    "g": 49,
    "b": 168
  },
  "hsl": {
    "h": 231.739,
    "s": 69.697,
    "l": 38.824
  },
  "oklch": {
    "l": 0.3908,
    "c": 0.18903,
    "h": 268.1
  },
  "luminance": 0.053
}

Semantic roles & 50–950 ramp

primary

#1E31A8

secondary

#C7B85B

accent

#D43BED

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0613

muted

#7C7A82

Preview Lab

Preview with #1E31A8

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

Preview Lab → · Contrast checker → · Palette generator →