#1D239E#1D239E

#1D239E is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.8% C 0.191 H 269.7°. Best body text is #FFFFFF at 11.76:1 contrast (WCAG AA passes).

Color values

HEX	#1D239E
RGB	rgb(29, 35, 158)
HSL	hsl(237, 69%, 37%)
HSV	hsv(237, 82%, 62%)
CMYK	cmyk(81.6%, 77.8%, 0%, 38%)
CIE-LAB	lab(23.44, 42.30, -65.95)
CIE-LCH	lch(23.44, 78.35, 302.68°)
OKLab	oklab(35.8% -0.0009 -0.191)
OKLCH	oklch(35.8% 0.191 269.7)
XYZ	xyz(7.2772, 3.9311, 32.7164)
Luminance	0.0393 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D239E #9E981D

analogous

#1D649E #1D239E #581D9E

triadic

#1D239E #9E1D23 #239E1D

tetradic

#1D239E #9E1D64 #9E981D #1D9E58

square

#1D239E #9E1D64 #9E981D #1D9E58

split-complementary

#1D239E #9E581D #649E1D

monochromatic

#0A0C37 #14186A #1D239E #262ED2 #565CE0

Accessibility & contrast

On white

11.76

#1D239E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#1D239E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D239E

11.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D239E	#FFFFFF	#000000	##FFFFFF
##1D239E	1.00	11.76	1.79	11.76
#FFFFFF	11.76	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003EA1

Deuteranopia (green-blind)

#00319C

Tritanopia (blue-blind)

#00485F

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1d239e;
/* rgb */ color: rgb(29, 35, 158);
/* oklch */ color: oklch(35.8% 0.191 269.7);

Tailwind

colors: {
  custom: {
    50: '#7360bc',
    500: '#1d239e',
    950: '#000000',
  },
}

SCSS

$custom: #1d239e;
$custom-light: #7360bc;
$custom-dark: #000000;

JSON

{
  "hex": "#1d239e",
  "rgb": {
    "r": 29,
    "g": 35,
    "b": 158
  },
  "hsl": {
    "h": 237.209,
    "s": 68.984,
    "l": 36.667
  },
  "oklch": {
    "l": 0.35798,
    "c": 0.19105,
    "h": 269.7
  },
  "luminance": 0.03932
}

Semantic roles & 50–950 ramp

primary

#1D239E

secondary

#C3BE54

accent

#E43CEC

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #1D239E

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

Preview Lab → · Contrast checker → · Palette generator →