#1E3787#1E3787

#1E3787 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.0% C 0.137 H 266.4°. Best body text is #FFFFFF at 10.76:1 contrast (WCAG AA passes).

Color values

HEX	#1E3787
RGB	rgb(30, 55, 135)
HSL	hsl(226, 64%, 32%)
HSV	hsv(226, 78%, 53%)
CMYK	cmyk(77.8%, 59.3%, 0%, 47.1%)
CIE-LAB	lab(26.03, 20.90, -47.51)
CIE-LCH	lch(26.03, 51.90, 293.74°)
OKLab	oklab(37.01% -0.0086 -0.1371)
OKLCH	oklch(37.01% 0.137 266.4)
XYZ	xyz(6.2733, 4.7570, 23.5045)
Luminance	0.0476 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E3787 #876E1E

analogous

#1E6C87 #1E3787 #391E87

triadic

#1E3787 #871E37 #37871E

tetradic

#1E3787 #871E6C #876E1E #1E8739

square

#1E3787 #871E6C #876E1E #1E8739

split-complementary

#1E3787 #87391E #6C871E

monochromatic

#080E23 #132355 #1E3787 #294BB9 #496BD7

Accessibility & contrast

On white

10.76

#1E3787 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#1E3787 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E3787

10.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E3787	#FFFFFF	#000000	##FFFFFF
##1E3787	1.00	10.76	1.95	10.76
#FFFFFF	10.76	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00438A

Deuteranopia (green-blind)

#003985

Tritanopia (blue-blind)

#004B59

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1e3787;
/* rgb */ color: rgb(30, 55, 135);
/* oklch */ color: oklch(37.0% 0.137 266.4);

Tailwind

colors: {
  custom: {
    50: '#6b6dab',
    500: '#1e3787',
    950: '#000000',
  },
}

SCSS

$custom: #1e3787;
$custom-light: #6b6dab;
$custom-dark: #000000;

JSON

{
  "hex": "#1e3787",
  "rgb": {
    "r": 30,
    "g": 55,
    "b": 135
  },
  "hsl": {
    "h": 225.714,
    "s": 63.636,
    "l": 32.353
  },
  "oklch": {
    "l": 0.37011,
    "c": 0.13739,
    "h": 266.4
  },
  "luminance": 0.04758
}

Semantic roles & 50–950 ramp

primary

#1E3787

secondary

#B99E48

accent

#BF41E7

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #1E3787

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

Preview Lab → · Contrast checker → · Palette generator →