#1E3587#1E3587

#1E3587 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.6% C 0.140 H 267.1°. Best body text is #FFFFFF at 10.97:1 contrast (WCAG AA passes).

Color values

HEX	#1E3587
RGB	rgb(30, 53, 135)
HSL	hsl(227, 64%, 32%)
HSV	hsv(227, 78%, 53%)
CMYK	cmyk(77.8%, 60.7%, 0%, 47.1%)
CIE-LAB	lab(25.48, 22.29, -48.41)
CIE-LCH	lch(25.48, 53.30, 294.72°)
OKLab	oklab(36.6% -0.0071 -0.1398)
OKLCH	oklch(36.6% 0.14 267.1)
XYZ	xyz(6.1802, 4.5708, 23.4735)
Luminance	0.0457 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E3587 #87701E

analogous

#1E6A87 #1E3587 #3B1E87

triadic

#1E3587 #871E35 #35871E

tetradic

#1E3587 #871E6A #87701E #1E873B

square

#1E3587 #871E6A #87701E #1E873B

split-complementary

#1E3587 #873B1E #6A871E

monochromatic

#080E23 #132155 #1E3587 #2949B9 #4968D7

Accessibility & contrast

On white

10.97

#1E3587 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#1E3587 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E3587

10.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E3587	#FFFFFF	#000000	##FFFFFF
##1E3587	1.00	10.97	1.91	10.97
#FFFFFF	10.97	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00418A

Deuteranopia (green-blind)

#003885

Tritanopia (blue-blind)

#004A58

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1e3587;
/* rgb */ color: rgb(30, 53, 135);
/* oklch */ color: oklch(36.6% 0.140 267.1);

Tailwind

colors: {
  custom: {
    50: '#6b6bab',
    500: '#1e3587',
    950: '#000000',
  },
}

SCSS

$custom: #1e3587;
$custom-light: #6b6bab;
$custom-dark: #000000;

JSON

{
  "hex": "#1e3587",
  "rgb": {
    "r": 30,
    "g": 53,
    "b": 135
  },
  "hsl": {
    "h": 226.857,
    "s": 63.636,
    "l": 32.353
  },
  "oklch": {
    "l": 0.36596,
    "c": 0.13999,
    "h": 267.1
  },
  "luminance": 0.04571
}

Semantic roles & 50–950 ramp

primary

#1E3587

secondary

#B9A048

accent

#C241E7

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080610

muted

#7A7A7F

Preview Lab

Preview with #1E3587

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

Preview Lab → · Contrast checker → · Palette generator →