#1A137F#1A137F

#1A137F is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.9% C 0.168 H 272.4°. Best body text is #FFFFFF at 14.55:1 contrast (WCAG AA passes).

Color values

HEX	#1A137F
RGB	rgb(26, 19, 127)
HSL	hsl(244, 74%, 29%)
HSV	hsv(244, 85%, 50%)
CMYK	cmyk(79.5%, 85%, 0%, 50.2%)
CIE-LAB	lab(16.59, 40.26, -58.00)
CIE-LCH	lch(16.59, 70.61, 304.76°)
OKLab	oklab(29.87% 0.007 -0.1678)
OKLCH	oklch(29.87% 0.168 272.4)
XYZ	xyz(4.4884, 2.2172, 20.2660)
Luminance	0.0222 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A137F #787F13

analogous

#13427F #1A137F #50137F

triadic

#1A137F #7F1A13 #137F1A

tetradic

#1A137F #7F1342 #787F13 #137F50

square

#1A137F #7F1342 #787F13 #137F50

split-complementary

#1A137F #7F5013 #427F13

monochromatic

#05041B #0F0B4A #1A137F #251BB4 #382DE0

Accessibility & contrast

On white

14.55

#1A137F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#1A137F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A137F

14.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A137F	#FFFFFF	#000000	##FFFFFF
##1A137F	1.00	14.55	1.44	14.55
#FFFFFF	14.55	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E82

Deuteranopia (green-blind)

#00247D

Tritanopia (blue-blind)

#00364A

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #1a137f;
/* rgb */ color: rgb(26, 19, 127);
/* oklch */ color: oklch(29.9% 0.168 272.4);

Tailwind

colors: {
  custom: {
    50: '#6b54a5',
    500: '#1a137f',
    950: '#000000',
  },
}

SCSS

$custom: #1a137f;
$custom-light: #6b54a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1a137f",
  "rgb": {
    "r": 26,
    "g": 19,
    "b": 127
  },
  "hsl": {
    "h": 243.889,
    "s": 73.973,
    "l": 28.627
  },
  "oklch": {
    "l": 0.29871,
    "c": 0.16797,
    "h": 272.4
  },
  "luminance": 0.02218
}

Semantic roles & 50–950 ramp

primary

#1A137F

secondary

#ACB439

accent

#F137E5

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #1A137F

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

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