#1D239D#1D239D

#1D239D is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.7% C 0.190 H 269.8°. Best body text is #FFFFFF at 11.80:1 contrast (WCAG AA passes).

Color values

HEX	#1D239D
RGB	rgb(29, 35, 157)
HSL	hsl(237, 69%, 36%)
HSV	hsv(237, 82%, 62%)
CMYK	cmyk(81.5%, 77.7%, 0%, 38.4%)
CIE-LAB	lab(23.33, 41.96, -65.53)
CIE-LCH	lch(23.33, 77.82, 302.63°)
OKLab	oklab(35.68% -0.0007 -0.1898)
OKLCH	oklch(35.68% 0.19 269.8)
XYZ	xyz(7.1915, 3.8968, 32.2649)
Luminance	0.0390 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D239D #9D971D

analogous

#1D639D #1D239D #571D9D

triadic

#1D239D #9D1D23 #239D1D

tetradic

#1D239D #9D1D63 #9D971D #1D9D57

square

#1D239D #9D1D63 #9D971D #1D9D57

split-complementary

#1D239D #9D571D #639D1D

monochromatic

#0A0C36 #131769 #1D239D #272FD1 #555BE0

Accessibility & contrast

On white

11.80

#1D239D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#1D239D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D239D

11.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D239D	#FFFFFF	#000000	##FFFFFF
##1D239D	1.00	11.80	1.78	11.80
#FFFFFF	11.80	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003EA0

Deuteranopia (green-blind)

#00319B

Tritanopia (blue-blind)

#00485F

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1d239d;
/* rgb */ color: rgb(29, 35, 157);
/* oklch */ color: oklch(35.7% 0.190 269.8);

Tailwind

colors: {
  custom: {
    50: '#7260bb',
    500: '#1d239d',
    950: '#000000',
  },
}

SCSS

$custom: #1d239d;
$custom-light: #7260bb;
$custom-dark: #000000;

JSON

{
  "hex": "#1d239d",
  "rgb": {
    "r": 29,
    "g": 35,
    "b": 157
  },
  "hsl": {
    "h": 237.188,
    "s": 68.817,
    "l": 36.471
  },
  "oklch": {
    "l": 0.35683,
    "c": 0.18983,
    "h": 269.8
  },
  "luminance": 0.03898
}

Semantic roles & 50–950 ramp

primary

#1D239D

secondary

#C3BE53

accent

#E33CEC

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #1D239D

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

Preview Lab → · Contrast checker → · Palette generator →