#1A137C#1A137C

#1A137C is a dark, vivid blue. Relative luminance 0.021; OKLCH L 29.5% C 0.164 H 272.7°. Best body text is #FFFFFF at 14.70:1 contrast (WCAG AA passes).

Color values

HEX	#1A137C
RGB	rgb(26, 19, 124)
HSL	hsl(244, 73%, 28%)
HSV	hsv(244, 85%, 49%)
CMYK	cmyk(79%, 84.7%, 0%, 51.4%)
CIE-LAB	lab(16.21, 39.28, -56.73)
CIE-LCH	lch(16.21, 69.00, 304.70°)
OKLab	oklab(29.5% 0.0078 -0.1641)
OKLCH	oklch(29.5% 0.164 272.7)
XYZ	xyz(4.2957, 2.1401, 19.2516)
Luminance	0.0214 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A137C #757C13

analogous

#13407C #1A137C #4E137C

triadic

#1A137C #7C1A13 #137C1A

tetradic

#1A137C #7C1340 #757C13 #137C4E

square

#1A137C #7C1340 #757C13 #137C4E

split-complementary

#1A137C #7C4E13 #407C13

monochromatic

#06041B #0F0B47 #1A137C #251BB1 #372BDF

Accessibility & contrast

On white

14.70

#1A137C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#1A137C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A137C

14.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A137C	#FFFFFF	#000000	##FFFFFF
##1A137C	1.00	14.70	1.43	14.70
#FFFFFF	14.70	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D7F

Deuteranopia (green-blind)

#00237A

Tritanopia (blue-blind)

#003549

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #1a137c;
/* rgb */ color: rgb(26, 19, 124);
/* oklch */ color: oklch(29.5% 0.164 272.7);

Tailwind

colors: {
  custom: {
    50: '#6a54a3',
    500: '#1a137c',
    950: '#000000',
  },
}

SCSS

$custom: #1a137c;
$custom-light: #6a54a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1a137c",
  "rgb": {
    "r": 26,
    "g": 19,
    "b": 124
  },
  "hsl": {
    "h": 244,
    "s": 73.427,
    "l": 28.039
  },
  "oklch": {
    "l": 0.29497,
    "c": 0.1643,
    "h": 272.7
  },
  "luminance": 0.02141
}

Semantic roles & 50–950 ramp

primary

#1A137C

secondary

#AAB239

accent

#F038E4

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08030F

muted

#7A787F

Preview Lab

Preview with #1A137C

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

Preview Lab → · Contrast checker → · Palette generator →