#1A137E#1A137E

#1A137E is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.7% C 0.167 H 272.5°. Best body text is #FFFFFF at 14.60:1 contrast (WCAG AA passes).

Color values

HEX	#1A137E
RGB	rgb(26, 19, 126)
HSL	hsl(244, 74%, 28%)
HSV	hsv(244, 85%, 49%)
CMYK	cmyk(79.4%, 84.9%, 0%, 50.6%)
CIE-LAB	lab(16.46, 39.94, -57.58)
CIE-LCH	lch(16.46, 70.07, 304.74°)
OKLab	oklab(29.75% 0.0073 -0.1666)
OKLCH	oklch(29.75% 0.167 272.5)
XYZ	xyz(4.4235, 2.1912, 19.9244)
Luminance	0.0219 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A137E #777E13

analogous

#13417E #1A137E #4F137E

triadic

#1A137E #7E1A13 #137E1A

tetradic

#1A137E #7E1341 #777E13 #137E4F

square

#1A137E #7E1341 #777E13 #137E4F

split-complementary

#1A137E #7E4F13 #417E13

monochromatic

#05041B #0F0B49 #1A137E #251BB3 #382CDF

Accessibility & contrast

On white

14.60

#1A137E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#1A137E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A137E

14.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A137E	#FFFFFF	#000000	##FFFFFF
##1A137E	1.00	14.60	1.44	14.60
#FFFFFF	14.60	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E81

Deuteranopia (green-blind)

#00237C

Tritanopia (blue-blind)

#00354A

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #1a137e;
/* rgb */ color: rgb(26, 19, 126);
/* oklch */ color: oklch(29.7% 0.167 272.5);

Tailwind

colors: {
  custom: {
    50: '#6b54a5',
    500: '#1a137e',
    950: '#000000',
  },
}

SCSS

$custom: #1a137e;
$custom-light: #6b54a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1a137e",
  "rgb": {
    "r": 26,
    "g": 19,
    "b": 126
  },
  "hsl": {
    "h": 243.925,
    "s": 73.793,
    "l": 28.431
  },
  "oklch": {
    "l": 0.29747,
    "c": 0.16675,
    "h": 272.5
  },
  "luminance": 0.02192
}

Semantic roles & 50–950 ramp

primary

#1A137E

secondary

#ACB439

accent

#F037E4

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #1A137E

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

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