#1E3488#1E3488

#1E3488 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.5% C 0.143 H 267.4°. Best body text is #FFFFFF at 11.04:1 contrast (WCAG AA passes).

Color values

HEX	#1E3488
RGB	rgb(30, 52, 136)
HSL	hsl(228, 64%, 33%)
HSV	hsv(228, 78%, 53%)
CMYK	cmyk(77.9%, 61.8%, 0%, 46.7%)
CIE-LAB	lab(25.29, 23.37, -49.34)
CIE-LCH	lch(25.29, 54.60, 295.35°)
OKLab	oklab(36.48% -0.0064 -0.1425)
OKLCH	oklch(36.48% 0.143 267.4)
XYZ	xyz(6.2058, 4.5089, 23.8310)
Luminance	0.0451 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E3488 #88721E

analogous

#1E6988 #1E3488 #3D1E88

triadic

#1E3488 #881E34 #34881E

tetradic

#1E3488 #881E69 #88721E #1E883D

square

#1E3488 #881E69 #88721E #1E883D

split-complementary

#1E3488 #883D1E #69881E

monochromatic

#080E24 #132156 #1E3488 #2947BA #4967D7

Accessibility & contrast

On white

11.04

#1E3488 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#1E3488 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E3488

11.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E3488	#FFFFFF	#000000	##FFFFFF
##1E3488	1.00	11.04	1.90	11.04
#FFFFFF	11.04	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00418B

Deuteranopia (green-blind)

#003786

Tritanopia (blue-blind)

#004958

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1e3488;
/* rgb */ color: rgb(30, 52, 136);
/* oklch */ color: oklch(36.5% 0.143 267.4);

Tailwind

colors: {
  custom: {
    50: '#6b6bab',
    500: '#1e3488',
    950: '#000000',
  },
}

SCSS

$custom: #1e3488;
$custom-light: #6b6bab;
$custom-dark: #000000;

JSON

{
  "hex": "#1e3488",
  "rgb": {
    "r": 30,
    "g": 52,
    "b": 136
  },
  "hsl": {
    "h": 227.547,
    "s": 63.855,
    "l": 32.549
  },
  "oklch": {
    "l": 0.36482,
    "c": 0.14269,
    "h": 267.4
  },
  "luminance": 0.0451
}

Semantic roles & 50–950 ramp

primary

#1E3488

secondary

#B9A249

accent

#C441E7

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080610

muted

#7A7A7F

Preview Lab

Preview with #1E3488

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

Preview Lab → · Contrast checker → · Palette generator →