#1D237D#1D237D

#1D237D is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.1% C 0.149 H 271.6°. Best body text is #FFFFFF at 13.22:1 contrast (WCAG AA passes).

Color values

HEX	#1D237D
RGB	rgb(29, 35, 125)
HSL	hsl(236, 62%, 30%)
HSV	hsv(236, 77%, 49%)
CMYK	cmyk(76.8%, 72%, 0%, 51%)
CIE-LAB	lab(19.82, 30.54, -51.39)
CIE-LCH	lch(19.82, 59.78, 300.72°)
OKLab	oklab(32.14% 0.0042 -0.1487)
OKLCH	oklch(32.14% 0.149 271.6)
XYZ	xyz(4.8081, 2.9434, 19.7128)
Luminance	0.0294 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D237D #7D771D

analogous

#1D537D #1D237D #471D7D

triadic

#1D237D #7D1D23 #237D1D

tetradic

#1D237D #7D1D53 #7D771D #1D7D47

square

#1D237D #7D1D53 #7D771D #1D7D47

split-complementary

#1D237D #7D471D #537D1D

monochromatic

#06071A #11154B #1D237D #2931AF #414AD3

Accessibility & contrast

On white

13.22

#1D237D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#1D237D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D237D

13.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D237D	#FFFFFF	#000000	##FFFFFF
##1D237D	1.00	13.22	1.59	13.22
#FFFFFF	13.22	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003580

Deuteranopia (green-blind)

#002B7B

Tritanopia (blue-blind)

#003C4D

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1d237d;
/* rgb */ color: rgb(29, 35, 125);
/* oklch */ color: oklch(32.1% 0.149 271.6);

Tailwind

colors: {
  custom: {
    50: '#6a5ea4',
    500: '#1d237d',
    950: '#000000',
  },
}

SCSS

$custom: #1d237d;
$custom-light: #6a5ea4;
$custom-dark: #000000;

JSON

{
  "hex": "#1d237d",
  "rgb": {
    "r": 29,
    "g": 35,
    "b": 125
  },
  "hsl": {
    "h": 236.25,
    "s": 62.338,
    "l": 30.196
  },
  "oklch": {
    "l": 0.32136,
    "c": 0.14875,
    "h": 271.6
  },
  "luminance": 0.02944
}

Semantic roles & 50–950 ramp

primary

#1D237D

secondary

#B1AA45

accent

#DB42E5

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #1D237D

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

Preview Lab → · Contrast checker → · Palette generator →