#1D137F#1D137F

#1D137F is a dark, vivid blue. Relative luminance 0.023; OKLCH L 30.1% C 0.167 H 273.8°. Best body text is #FFFFFF at 14.46:1 contrast (WCAG AA passes).

Color values

HEX	#1D137F
RGB	rgb(29, 19, 127)
HSL	hsl(246, 74%, 29%)
HSV	hsv(246, 85%, 50%)
CMYK	cmyk(77.2%, 85%, 0%, 50.2%)
CIE-LAB	lab(16.79, 40.46, -57.66)
CIE-LCH	lch(16.79, 70.44, 305.06°)
OKLab	oklab(30.07% 0.0111 -0.1668)
OKLCH	oklch(30.07% 0.167 273.8)
XYZ	xyz(4.5691, 2.2588, 20.2697)
Luminance	0.0226 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D137F #757F13

analogous

#133F7F #1D137F #53137F

triadic

#1D137F #7F1D13 #137F1D

tetradic

#1D137F #7F133F #757F13 #137F53

square

#1D137F #7F133F #757F13 #137F53

split-complementary

#1D137F #7F5313 #3F7F13

monochromatic

#06041B #110B4A #1D137F #291BB4 #3D2DE0

Accessibility & contrast

On white

14.46

#1D137F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#1D137F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D137F

14.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D137F	#FFFFFF	#000000	##FFFFFF
##1D137F	1.00	14.46	1.45	14.46
#FFFFFF	14.46	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.46	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: #1d137f;
/* rgb */ color: rgb(29, 19, 127);
/* oklch */ color: oklch(30.1% 0.167 273.8);

Tailwind

colors: {
  custom: {
    50: '#6c55a5',
    500: '#1d137f',
    950: '#000000',
  },
}

SCSS

$custom: #1d137f;
$custom-light: #6c55a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1d137f",
  "rgb": {
    "r": 29,
    "g": 19,
    "b": 127
  },
  "hsl": {
    "h": 245.556,
    "s": 73.973,
    "l": 28.627
  },
  "oklch": {
    "l": 0.30065,
    "c": 0.16714,
    "h": 273.8
  },
  "luminance": 0.02259
}

Semantic roles & 50–950 ramp

primary

#1D137F

secondary

#A9B439

accent

#F137DF

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #1D137F

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

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