#1E3C8A#1E3C8A

#1E3C8A is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.3% C 0.135 H 264.8°. Best body text is #FFFFFF at 10.15:1 contrast (WCAG AA passes).

Color values

HEX	#1E3C8A
RGB	rgb(30, 60, 138)
HSL	hsl(223, 64%, 33%)
HSV	hsv(223, 78%, 54%)
CMYK	cmyk(78.3%, 56.5%, 0%, 45.9%)
CIE-LAB	lab(27.69, 18.62, -46.68)
CIE-LCH	lch(27.69, 50.25, 291.74°)
OKLab	oklab(38.33% -0.0123 -0.1346)
OKLCH	oklch(38.33% 0.135 264.8)
XYZ	xyz(6.7371, 5.3420, 24.7159)
Luminance	0.0534 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E3C8A #8A6C1E

analogous

#1E728A #1E3C8A #361E8A

triadic

#1E3C8A #8A1E3C #3C8A1E

tetradic

#1E3C8A #8A1E72 #8A6C1E #1E8A36

square

#1E3C8A #8A1E72 #8A6C1E #1E8A36

split-complementary

#1E3C8A #8A361E #728A1E

monochromatic

#081025 #132658 #1E3C8A #2952BC #4B72D8

Accessibility & contrast

On white

10.15

#1E3C8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#1E3C8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E3C8A

10.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E3C8A	#FFFFFF	#000000	##FFFFFF
##1E3C8A	1.00	10.15	2.07	10.15
#FFFFFF	10.15	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00478D

Deuteranopia (green-blind)

#003D88

Tritanopia (blue-blind)

#004F5D

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1e3c8a;
/* rgb */ color: rgb(30, 60, 138);
/* oklch */ color: oklch(38.3% 0.135 264.8);

Tailwind

colors: {
  custom: {
    50: '#6b71ad',
    500: '#1e3c8a',
    950: '#000000',
  },
}

SCSS

$custom: #1e3c8a;
$custom-light: #6b71ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1e3c8a",
  "rgb": {
    "r": 30,
    "g": 60,
    "b": 138
  },
  "hsl": {
    "h": 223.333,
    "s": 64.286,
    "l": 32.941
  },
  "oklch": {
    "l": 0.38334,
    "c": 0.13515,
    "h": 264.8
  },
  "luminance": 0.05343
}

Semantic roles & 50–950 ramp

primary

#1E3C8A

secondary

#BA9B4A

accent

#B941E7

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #1E3C8A

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

Preview Lab → · Contrast checker → · Palette generator →