#1D337A#1D337A

#1D337A is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.0% C 0.124 H 266.7°. Best body text is #FFFFFF at 11.62:1 contrast (WCAG AA passes).

Color values

HEX	#1D337A
RGB	rgb(29, 51, 122)
HSL	hsl(226, 62%, 30%)
HSV	hsv(226, 76%, 48%)
CMYK	cmyk(76.2%, 58.2%, 0%, 52.2%)
CIE-LAB	lab(23.78, 18.37, -43.00)
CIE-LCH	lch(23.78, 46.76, 293.13°)
OKLab	oklab(34.98% -0.007 -0.124)
OKLCH	oklch(34.98% 0.124 266.7)
XYZ	xyz(5.2021, 4.0334, 18.9129)
Luminance	0.0403 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D337A #7A641D

analogous

#1D627A #1D337A #351D7A

triadic

#1D337A #7A1D33 #337A1D

tetradic

#1D337A #7A1D62 #7A641D #1D7A35

square

#1D337A #7A1D62 #7A641D #1D7A35

split-complementary

#1D337A #7A351D #627A1D

monochromatic

#060A19 #111E49 #1D337A #2948AB #4062D2

Accessibility & contrast

On white

11.62

#1D337A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#1D337A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D337A

11.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D337A	#FFFFFF	#000000	##FFFFFF
##1D337A	1.00	11.62	1.81	11.62
#FFFFFF	11.62	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D7C

Deuteranopia (green-blind)

#003479

Tritanopia (blue-blind)

#004451

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1d337a;
/* rgb */ color: rgb(29, 51, 122);
/* oklch */ color: oklch(35.0% 0.124 266.7);

Tailwind

colors: {
  custom: {
    50: '#676aa1',
    500: '#1d337a',
    950: '#000000',
  },
}

SCSS

$custom: #1d337a;
$custom-light: #676aa1;
$custom-dark: #000000;

JSON

{
  "hex": "#1d337a",
  "rgb": {
    "r": 29,
    "g": 51,
    "b": 122
  },
  "hsl": {
    "h": 225.806,
    "s": 61.589,
    "l": 29.608
  },
  "oklch": {
    "l": 0.34975,
    "c": 0.12416,
    "h": 266.7
  },
  "luminance": 0.04034
}

Semantic roles & 50–950 ramp

primary

#1D337A

secondary

#AE9545

accent

#BE43E5

background

#F6F6FA

surface

#EBEBF3

border

#C6C6CD

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1D337A

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

Preview Lab → · Contrast checker → · Palette generator →