#1E238B#1E238B

#1E238B is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.7% C 0.167 H 271.2°. Best body text is #FFFFFF at 12.59:1 contrast (WCAG AA passes).

Color values

HEX	#1E238B
RGB	rgb(30, 35, 139)
HSL	hsl(237, 64%, 33%)
HSV	hsv(237, 78%, 55%)
CMYK	cmyk(78.4%, 74.8%, 0%, 45.5%)
CIE-LAB	lab(21.36, 35.75, -57.66)
CIE-LCH	lch(21.36, 67.84, 301.80°)
OKLab	oklab(33.71% 0.0034 -0.1669)
OKLCH	oklch(33.71% 0.167 271.2)
XYZ	xyz(5.7951, 3.3415, 24.7607)
Luminance	0.0334 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E238B #8B861E

analogous

#1E598B #1E238B #4F1E8B

triadic

#1E238B #8B1E23 #238B1E

tetradic

#1E238B #8B1E59 #8B861E #1E8B4F

square

#1E238B #8B1E59 #8B861E #1E8B4F

split-complementary

#1E238B #8B4F1E #598B1E

monochromatic

#080A26 #131659 #1E238B #2930BD #4B52D8

Accessibility & contrast

On white

12.59

#1E238B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#1E238B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E238B

12.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E238B	#FFFFFF	#000000	##FFFFFF
##1E238B	1.00	12.59	1.67	12.59
#FFFFFF	12.59	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00398E

Deuteranopia (green-blind)

#002E89

Tritanopia (blue-blind)

#004155

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1e238b;
/* rgb */ color: rgb(30, 35, 139);
/* oklch */ color: oklch(33.7% 0.167 271.2);

Tailwind

colors: {
  custom: {
    50: '#6e5fae',
    500: '#1e238b',
    950: '#000000',
  },
}

SCSS

$custom: #1e238b;
$custom-light: #6e5fae;
$custom-dark: #000000;

JSON

{
  "hex": "#1e238b",
  "rgb": {
    "r": 30,
    "g": 35,
    "b": 139
  },
  "hsl": {
    "h": 237.248,
    "s": 64.497,
    "l": 33.137
  },
  "oklch": {
    "l": 0.33708,
    "c": 0.16696,
    "h": 271.2
  },
  "luminance": 0.03342
}

Semantic roles & 50–950 ramp

primary

#1E238B

secondary

#BBB54A

accent

#E040E7

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1E238B

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

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