#1E3D8A#1E3D8A

#1E3D8A is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.6% C 0.134 H 264.4°. Best body text is #FFFFFF at 10.05:1 contrast (WCAG AA passes).

Color values

HEX	#1E3D8A
RGB	rgb(30, 61, 138)
HSL	hsl(223, 64%, 33%)
HSV	hsv(223, 78%, 54%)
CMYK	cmyk(78.3%, 55.8%, 0%, 45.9%)
CIE-LAB	lab(27.97, 17.92, -46.21)
CIE-LCH	lch(27.97, 49.57, 291.20°)
OKLab	oklab(38.55% -0.0131 -0.1332)
OKLCH	oklch(38.55% 0.134 264.4)
XYZ	xyz(6.7900, 5.4477, 24.7335)
Luminance	0.0545 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E3D8A #8A6B1E

analogous

#1E738A #1E3D8A #351E8A

triadic

#1E3D8A #8A1E3D #3D8A1E

tetradic

#1E3D8A #8A1E73 #8A6B1E #1E8A35

square

#1E3D8A #8A1E73 #8A6B1E #1E8A35

split-complementary

#1E3D8A #8A351E #738A1E

monochromatic

#081125 #132758 #1E3D8A #2953BC #4B73D8

Accessibility & contrast

On white

10.05

#1E3D8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#1E3D8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E3D8A

10.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E3D8A	#FFFFFF	#000000	##FFFFFF
##1E3D8A	1.00	10.05	2.09	10.05
#FFFFFF	10.05	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00478D

Deuteranopia (green-blind)

#003D88

Tritanopia (blue-blind)

#00505D

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1e3d8a;
/* rgb */ color: rgb(30, 61, 138);
/* oklch */ color: oklch(38.6% 0.134 264.4);

Tailwind

colors: {
  custom: {
    50: '#6b72ad',
    500: '#1e3d8a',
    950: '#000000',
  },
}

SCSS

$custom: #1e3d8a;
$custom-light: #6b72ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1e3d8a",
  "rgb": {
    "r": 30,
    "g": 61,
    "b": 138
  },
  "hsl": {
    "h": 222.778,
    "s": 64.286,
    "l": 32.941
  },
  "oklch": {
    "l": 0.3855,
    "c": 0.13385,
    "h": 264.4
  },
  "luminance": 0.05448
}

Semantic roles & 50–950 ramp

primary

#1E3D8A

secondary

#BA9A4A

accent

#B741E7

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #1E3D8A

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

Preview Lab → · Contrast checker → · Palette generator →