#1E288E#1E288E

#1E288E is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.8% C 0.165 H 270.2°. Best body text is #FFFFFF at 12.00:1 contrast (WCAG AA passes).

Color values

HEX	#1E288E
RGB	rgb(30, 40, 142)
HSL	hsl(235, 65%, 34%)
HSV	hsv(235, 79%, 56%)
CMYK	cmyk(78.9%, 71.8%, 0%, 44.3%)
CIE-LAB	lab(22.81, 33.71, -57.13)
CIE-LCH	lch(22.81, 66.34, 300.54°)
OKLab	oklab(34.84% 0.0005 -0.1654)
OKLCH	oklch(34.84% 0.165 270.2)
XYZ	xyz(6.1750, 3.7459, 25.9835)
Luminance	0.0375 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E288E #8E841E

analogous

#1E608E #1E288E #4C1E8E

triadic

#1E288E #8E1E28 #288E1E

tetradic

#1E288E #8E1E60 #8E841E #1E8E4C

square

#1E288E #8E1E60 #8E841E #1E8E4C

split-complementary

#1E288E #8E4C1E #608E1E

monochromatic

#090C29 #131A5B #1E288E #2936C1 #4D5AD9

Accessibility & contrast

On white

12.00

#1E288E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#1E288E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E288E

12.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E288E	#FFFFFF	#000000	##FFFFFF
##1E288E	1.00	12.00	1.75	12.00
#FFFFFF	12.00	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C91

Deuteranopia (green-blind)

#00318C

Tritanopia (blue-blind)

#004558

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1e288e;
/* rgb */ color: rgb(30, 40, 142);
/* oklch */ color: oklch(34.8% 0.165 270.2);

Tailwind

colors: {
  custom: {
    50: '#6e62b0',
    500: '#1e288e',
    950: '#000000',
  },
}

SCSS

$custom: #1e288e;
$custom-light: #6e62b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1e288e",
  "rgb": {
    "r": 30,
    "g": 40,
    "b": 142
  },
  "hsl": {
    "h": 234.643,
    "s": 65.116,
    "l": 33.725
  },
  "oklch": {
    "l": 0.34843,
    "c": 0.16542,
    "h": 270.2
  },
  "luminance": 0.03747
}

Semantic roles & 50–950 ramp

primary

#1E288E

secondary

#BCB24C

accent

#D940E8

background

#F7F5FB

surface

#EDEAF6

border

#C8C6D0

text

#080511

muted

#7B7980

Preview Lab

Preview with #1E288E

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

Preview Lab → · Contrast checker → · Palette generator →