#1E288D#1E288D

#1E288D is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.7% C 0.164 H 270.2°. Best body text is #FFFFFF at 12.05:1 contrast (WCAG AA passes).

Color values

HEX	#1E288D
RGB	rgb(30, 40, 141)
HSL	hsl(235, 65%, 34%)
HSV	hsv(235, 79%, 55%)
CMYK	cmyk(78.7%, 71.6%, 0%, 44.7%)
CIE-LAB	lab(22.71, 33.34, -56.68)
CIE-LCH	lch(22.71, 65.76, 300.46°)
OKLab	oklab(34.74% 0.0007 -0.1641)
OKLCH	oklch(34.74% 0.164 270.2)
XYZ	xyz(6.1003, 3.7160, 25.5899)
Luminance	0.0372 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E288D #8D831E

analogous

#1E5F8D #1E288D #4B1E8D

triadic

#1E288D #8D1E28 #288D1E

tetradic

#1E288D #8D1E5F #8D831E #1E8D4B

square

#1E288D #8D1E5F #8D831E #1E8D4B

split-complementary

#1E288D #8D4B1E #5F8D1E

monochromatic

#090B28 #131A5B #1E288D #2936BF #4C59D9

Accessibility & contrast

On white

12.05

#1E288D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#1E288D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E288D

12.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E288D	#FFFFFF	#000000	##FFFFFF
##1E288D	1.00	12.05	1.74	12.05
#FFFFFF	12.05	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C90

Deuteranopia (green-blind)

#00318B

Tritanopia (blue-blind)

#004457

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1e288d;
/* rgb */ color: rgb(30, 40, 141);
/* oklch */ color: oklch(34.7% 0.164 270.2);

Tailwind

colors: {
  custom: {
    50: '#6e62af',
    500: '#1e288d',
    950: '#000000',
  },
}

SCSS

$custom: #1e288d;
$custom-light: #6e62af;
$custom-dark: #000000;

JSON

{
  "hex": "#1e288d",
  "rgb": {
    "r": 30,
    "g": 40,
    "b": 141
  },
  "hsl": {
    "h": 234.595,
    "s": 64.912,
    "l": 33.529
  },
  "oklch": {
    "l": 0.34738,
    "c": 0.16411,
    "h": 270.2
  },
  "luminance": 0.03717
}

Semantic roles & 50–950 ramp

primary

#1E288D

secondary

#BCB14B

accent

#D940E8

background

#F7F5FA

surface

#EDEAF5

border

#C8C6CF

text

#080511

muted

#7B7980

Preview Lab

Preview with #1E288D

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

Preview Lab → · Contrast checker → · Palette generator →