#1A337D#1A337D

#1A337D is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.1% C 0.129 H 265.8°. Best body text is #FFFFFF at 11.58:1 contrast (WCAG AA passes).

Color values

HEX	#1A337D
RGB	rgb(26, 51, 125)
HSL	hsl(225, 66%, 30%)
HSV	hsv(225, 79%, 49%)
CMYK	cmyk(79.2%, 59.2%, 0%, 51%)
CIE-LAB	lab(23.89, 19.19, -44.73)
CIE-LCH	lch(23.89, 48.67, 293.23°)
OKLab	oklab(35.1% -0.0096 -0.1291)
OKLCH	oklch(35.1% 0.129 265.8)
XYZ	xyz(5.3102, 4.0673, 19.9033)
Luminance	0.0407 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A337D #7D641A

analogous

#1A657D #1A337D #321A7D

triadic

#1A337D #7D1A33 #337D1A

tetradic

#1A337D #7D1A65 #7D641A #1A7D32

square

#1A337D #7D1A65 #7D641A #1A7D32

split-complementary

#1A337D #7D321A #657D1A

monochromatic

#050A19 #0F1E4A #1A337D #2548B0 #3B62D6

Accessibility & contrast

On white

11.58

#1A337D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#1A337D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A337D

11.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A337D	#FFFFFF	#000000	##FFFFFF
##1A337D	1.00	11.58	1.81	11.58
#FFFFFF	11.58	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E80

Deuteranopia (green-blind)

#00347C

Tritanopia (blue-blind)

#004552

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1a337d;
/* rgb */ color: rgb(26, 51, 125);
/* oklch */ color: oklch(35.1% 0.129 265.8);

Tailwind

colors: {
  custom: {
    50: '#676aa3',
    500: '#1a337d',
    950: '#000000',
  },
}

SCSS

$custom: #1a337d;
$custom-light: #676aa3;
$custom-dark: #000000;

JSON

{
  "hex": "#1a337d",
  "rgb": {
    "r": 26,
    "g": 51,
    "b": 125
  },
  "hsl": {
    "h": 224.848,
    "s": 65.563,
    "l": 29.608
  },
  "oklch": {
    "l": 0.35098,
    "c": 0.12943,
    "h": 265.8
  },
  "luminance": 0.04068
}

Semantic roles & 50–950 ramp

primary

#1A337D

secondary

#B19542

accent

#BE3FE9

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1A337D

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

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