#1A337E#1A337E

#1A337E is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.2% C 0.131 H 265.8°. Best body text is #FFFFFF at 11.55:1 contrast (WCAG AA passes).

Color values

HEX	#1A337E
RGB	rgb(26, 51, 126)
HSL	hsl(225, 66%, 30%)
HSV	hsv(225, 79%, 49%)
CMYK	cmyk(79.4%, 59.5%, 0%, 50.6%)
CIE-LAB	lab(23.98, 19.60, -45.22)
CIE-LCH	lch(23.98, 49.28, 293.43°)
OKLab	oklab(35.19% -0.0095 -0.1305)
OKLCH	oklch(35.19% 0.131 265.8)
XYZ	xyz(5.3744, 4.0930, 20.2414)
Luminance	0.0409 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A337E #7E651A

analogous

#1A657E #1A337E #331A7E

triadic

#1A337E #7E1A33 #337E1A

tetradic

#1A337E #7E1A65 #7E651A #1A7E33

square

#1A337E #7E1A65 #7E651A #1A7E33

split-complementary

#1A337E #7E331A #657E1A

monochromatic

#050A19 #101E4B #1A337E #2448B1 #3C62D7

Accessibility & contrast

On white

11.55

#1A337E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#1A337E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A337E

11.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A337E	#FFFFFF	#000000	##FFFFFF
##1A337E	1.00	11.55	1.82	11.55
#FFFFFF	11.55	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E81

Deuteranopia (green-blind)

#00357D

Tritanopia (blue-blind)

#004653

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1a337e;
/* rgb */ color: rgb(26, 51, 126);
/* oklch */ color: oklch(35.2% 0.131 265.8);

Tailwind

colors: {
  custom: {
    50: '#676aa4',
    500: '#1a337e',
    950: '#000000',
  },
}

SCSS

$custom: #1a337e;
$custom-light: #676aa4;
$custom-dark: #000000;

JSON

{
  "hex": "#1a337e",
  "rgb": {
    "r": 26,
    "g": 51,
    "b": 126
  },
  "hsl": {
    "h": 225,
    "s": 65.789,
    "l": 29.804
  },
  "oklch": {
    "l": 0.35188,
    "c": 0.13089,
    "h": 265.8
  },
  "luminance": 0.04094
}

Semantic roles & 50–950 ramp

primary

#1A337E

secondary

#B29642

accent

#BE3FE9

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1A337E

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

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