#1E3790#1E3790

#1E3790 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.8% C 0.150 H 266.8°. Best body text is #FFFFFF at 10.48:1 contrast (WCAG AA passes).

Color values

HEX	#1E3790
RGB	rgb(30, 55, 144)
HSL	hsl(227, 66%, 34%)
HSV	hsv(227, 79%, 56%)
CMYK	cmyk(79.2%, 61.8%, 0%, 43.5%)
CIE-LAB	lab(26.80, 24.46, -51.84)
CIE-LCH	lch(26.80, 57.32, 295.26°)
OKLab	oklab(37.82% -0.0084 -0.1498)
OKLCH	oklch(37.82% 0.15 266.8)
XYZ	xyz(6.9339, 5.0212, 26.9839)
Luminance	0.0502 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E3790 #90771E

analogous

#1E7090 #1E3790 #3E1E90

triadic

#1E3790 #901E37 #37901E

tetradic

#1E3790 #901E70 #90771E #1E903E

square

#1E3790 #901E70 #90771E #1E903E

split-complementary

#1E3790 #903E1E #70901E

monochromatic

#09102B #13245D #1E3790 #294AC3 #4E6DDA

Accessibility & contrast

On white

10.48

#1E3790 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#1E3790 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E3790

10.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E3790	#FFFFFF	#000000	##FFFFFF
##1E3790	1.00	10.48	2.00	10.48
#FFFFFF	10.48	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004593

Deuteranopia (green-blind)

#003A8E

Tritanopia (blue-blind)

#004E5E

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1e3790;
/* rgb */ color: rgb(30, 55, 144);
/* oklch */ color: oklch(37.8% 0.150 266.8);

Tailwind

colors: {
  custom: {
    50: '#6d6db1',
    500: '#1e3790',
    950: '#000000',
  },
}

SCSS

$custom: #1e3790;
$custom-light: #6d6db1;
$custom-dark: #000000;

JSON

{
  "hex": "#1e3790",
  "rgb": {
    "r": 30,
    "g": 55,
    "b": 144
  },
  "hsl": {
    "h": 226.842,
    "s": 65.517,
    "l": 34.118
  },
  "oklch": {
    "l": 0.3782,
    "c": 0.15007,
    "h": 266.8
  },
  "luminance": 0.05022
}

Semantic roles & 50–950 ramp

primary

#1E3790

secondary

#BDA44D

accent

#C33FE8

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #1E3790

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

Preview Lab → · Contrast checker → · Palette generator →