#1A337A#1A337A

#1A337A is a dark, vivid blue. Relative luminance 0.040; OKLCH L 34.8% C 0.125 H 265.5°. Best body text is #FFFFFF at 11.68:1 contrast (WCAG AA passes).

Color values

HEX	#1A337A
RGB	rgb(26, 51, 122)
HSL	hsl(224, 65%, 29%)
HSV	hsv(224, 79%, 48%)
CMYK	cmyk(78.7%, 58.2%, 0%, 52.2%)
CIE-LAB	lab(23.64, 17.97, -43.23)
CIE-LCH	lch(23.64, 46.82, 292.57°)
OKLab	oklab(34.83% -0.0097 -0.1247)
OKLCH	oklch(34.83% 0.125 265.5)
XYZ	xyz(5.1214, 3.9918, 18.9092)
Luminance	0.0399 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A337A #7A611A

analogous

#1A637A #1A337A #311A7A

triadic

#1A337A #7A1A33 #337A1A

tetradic

#1A337A #7A1A63 #7A611A #1A7A31

square

#1A337A #7A1A63 #7A611A #1A7A31

split-complementary

#1A337A #7A311A #637A1A

monochromatic

#050B19 #0F1E48 #1A337A #2548AC #3962D5

Accessibility & contrast

On white

11.68

#1A337A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#1A337A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A337A

11.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A337A	#FFFFFF	#000000	##FFFFFF
##1A337A	1.00	11.68	1.80	11.68
#FFFFFF	11.68	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D7C

Deuteranopia (green-blind)

#003479

Tritanopia (blue-blind)

#004551

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1a337a;
/* rgb */ color: rgb(26, 51, 122);
/* oklch */ color: oklch(34.8% 0.125 265.5);

Tailwind

colors: {
  custom: {
    50: '#666aa1',
    500: '#1a337a',
    950: '#000000',
  },
}

SCSS

$custom: #1a337a;
$custom-light: #666aa1;
$custom-dark: #000000;

JSON

{
  "hex": "#1a337a",
  "rgb": {
    "r": 26,
    "g": 51,
    "b": 122
  },
  "hsl": {
    "h": 224.375,
    "s": 64.865,
    "l": 29.02
  },
  "oklch": {
    "l": 0.34834,
    "c": 0.12507,
    "h": 265.5
  },
  "luminance": 0.03992
}

Semantic roles & 50–950 ramp

primary

#1A337A

secondary

#AE9241

accent

#BC40E8

background

#F6F6FA

surface

#EBEBF3

border

#C6C6CD

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1A337A

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

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