#1A337B#1A337B

#1A337B is a dark, vivid blue. Relative luminance 0.040; OKLCH L 34.9% C 0.127 H 265.6°. Best body text is #FFFFFF at 11.64:1 contrast (WCAG AA passes).

Color values

HEX	#1A337B
RGB	rgb(26, 51, 123)
HSL	hsl(225, 65%, 29%)
HSV	hsv(225, 79%, 48%)
CMYK	cmyk(78.9%, 58.5%, 0%, 51.8%)
CIE-LAB	lab(23.73, 18.38, -43.73)
CIE-LCH	lch(23.73, 47.44, 292.80°)
OKLab	oklab(34.92% -0.0097 -0.1262)
OKLCH	oklch(34.92% 0.127 265.6)
XYZ	xyz(5.1837, 4.0167, 19.2372)
Luminance	0.0402 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A337B #7B621A

analogous

#1A647B #1A337B #321A7B

triadic

#1A337B #7B1A33 #337B1A

tetradic

#1A337B #7B1A64 #7B621A #1A7B32

square

#1A337B #7B1A64 #7B621A #1A7B32

split-complementary

#1A337B #7B321A #647B1A

monochromatic

#050A19 #0F1E48 #1A337B #2548AE #3A62D5

Accessibility & contrast

On white

11.64

#1A337B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#1A337B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A337B

11.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A337B	#FFFFFF	#000000	##FFFFFF
##1A337B	1.00	11.64	1.80	11.64
#FFFFFF	11.64	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D7D

Deuteranopia (green-blind)

#00347A

Tritanopia (blue-blind)

#004551

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1a337b;
/* rgb */ color: rgb(26, 51, 123);
/* oklch */ color: oklch(34.9% 0.127 265.6);

Tailwind

colors: {
  custom: {
    50: '#676aa2',
    500: '#1a337b',
    950: '#000000',
  },
}

SCSS

$custom: #1a337b;
$custom-light: #676aa2;
$custom-dark: #000000;

JSON

{
  "hex": "#1a337b",
  "rgb": {
    "r": 26,
    "g": 51,
    "b": 123
  },
  "hsl": {
    "h": 224.536,
    "s": 65.101,
    "l": 29.216
  },
  "oklch": {
    "l": 0.34921,
    "c": 0.12653,
    "h": 265.6
  },
  "luminance": 0.04017
}

Semantic roles & 50–950 ramp

primary

#1A337B

secondary

#AF9342

accent

#BD40E8

background

#F6F6FA

surface

#EBEBF3

border

#C6C6CD

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1A337B

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

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