#1E3F8A#1E3F8A

#1E3F8A is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.0% C 0.131 H 263.6°. Best body text is #FFFFFF at 9.84:1 contrast (WCAG AA passes).

Color values

HEX	#1E3F8A
RGB	rgb(30, 63, 138)
HSL	hsl(222, 64%, 33%)
HSV	hsv(222, 78%, 54%)
CMYK	cmyk(78.3%, 54.3%, 0%, 45.9%)
CIE-LAB	lab(28.55, 16.53, -45.28)
CIE-LCH	lch(28.55, 48.20, 290.06°)
OKLab	oklab(38.99% -0.0147 -0.1304)
OKLCH	oklch(38.99% 0.131 263.6)
XYZ	xyz(6.8987, 5.6652, 24.7697)
Luminance	0.0567 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E3F8A #8A691E

analogous

#1E758A #1E3F8A #331E8A

triadic

#1E3F8A #8A1E3F #3F8A1E

tetradic

#1E3F8A #8A1E75 #8A691E #1E8A33

square

#1E3F8A #8A1E75 #8A691E #1E8A33

split-complementary

#1E3F8A #8A331E #758A1E

monochromatic

#081125 #132858 #1E3F8A #2956BC #4B76D8

Accessibility & contrast

On white

9.84

#1E3F8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#1E3F8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E3F8A

9.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E3F8A	#FFFFFF	#000000	##FFFFFF
##1E3F8A	1.00	9.84	2.13	9.84
#FFFFFF	9.84	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#07498D

Deuteranopia (green-blind)

#003F89

Tritanopia (blue-blind)

#00515E

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1e3f8a;
/* rgb */ color: rgb(30, 63, 138);
/* oklch */ color: oklch(39.0% 0.131 263.6);

Tailwind

colors: {
  custom: {
    50: '#6b73ad',
    500: '#1e3f8a',
    950: '#000000',
  },
}

SCSS

$custom: #1e3f8a;
$custom-light: #6b73ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1e3f8a",
  "rgb": {
    "r": 30,
    "g": 63,
    "b": 138
  },
  "hsl": {
    "h": 221.667,
    "s": 64.286,
    "l": 32.941
  },
  "oklch": {
    "l": 0.38988,
    "c": 0.13124,
    "h": 263.6
  },
  "luminance": 0.05666
}

Semantic roles & 50–950 ramp

primary

#1E3F8A

secondary

#BA984A

accent

#B441E7

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #1E3F8A

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

Preview Lab → · Contrast checker → · Palette generator →