#1E3987#1E3987

#1E3987 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.4% C 0.135 H 265.7°. Best body text is #FFFFFF at 10.55:1 contrast (WCAG AA passes).

Color values

HEX	#1E3987
RGB	rgb(30, 57, 135)
HSL	hsl(225, 64%, 32%)
HSV	hsv(225, 78%, 53%)
CMYK	cmyk(77.8%, 57.8%, 0%, 47.1%)
CIE-LAB	lab(26.59, 19.50, -46.59)
CIE-LCH	lch(26.59, 50.51, 292.71°)
OKLab	oklab(37.43% -0.0102 -0.1344)
OKLCH	oklch(37.43% 0.135 265.7)
XYZ	xyz(6.3702, 4.9508, 23.5369)
Luminance	0.0495 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E3987 #876C1E

analogous

#1E6E87 #1E3987 #371E87

triadic

#1E3987 #871E39 #39871E

tetradic

#1E3987 #871E6E #876C1E #1E8737

square

#1E3987 #871E6E #876C1E #1E8737

split-complementary

#1E3987 #87371E #6E871E

monochromatic

#080F23 #132455 #1E3987 #294EB9 #496DD7

Accessibility & contrast

On white

10.55

#1E3987 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#1E3987 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E3987

10.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E3987	#FFFFFF	#000000	##FFFFFF
##1E3987	1.00	10.55	1.99	10.55
#FFFFFF	10.55	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00448A

Deuteranopia (green-blind)

#003A85

Tritanopia (blue-blind)

#004C5A

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1e3987;
/* rgb */ color: rgb(30, 57, 135);
/* oklch */ color: oklch(37.4% 0.135 265.7);

Tailwind

colors: {
  custom: {
    50: '#6b6eab',
    500: '#1e3987',
    950: '#000000',
  },
}

SCSS

$custom: #1e3987;
$custom-light: #6b6eab;
$custom-dark: #000000;

JSON

{
  "hex": "#1e3987",
  "rgb": {
    "r": 30,
    "g": 57,
    "b": 135
  },
  "hsl": {
    "h": 224.571,
    "s": 63.636,
    "l": 32.353
  },
  "oklch": {
    "l": 0.37434,
    "c": 0.13477,
    "h": 265.7
  },
  "luminance": 0.04952
}

Semantic roles & 50–950 ramp

primary

#1E3987

secondary

#B99C48

accent

#BC41E7

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #1E3987

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

Preview Lab → · Contrast checker → · Palette generator →