#1D257D#1D257D

#1D257D is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.5% C 0.146 H 271.2°. Best body text is #FFFFFF at 13.02:1 contrast (WCAG AA passes).

Color values

HEX	#1D257D
RGB	rgb(29, 37, 125)
HSL	hsl(235, 62%, 30%)
HSV	hsv(235, 77%, 49%)
CMYK	cmyk(76.8%, 70.4%, 0%, 51%)
CIE-LAB	lab(20.30, 29.23, -50.59)
CIE-LCH	lch(20.30, 58.43, 300.01°)
OKLab	oklab(32.49% 0.0031 -0.1464)
OKLCH	oklch(32.49% 0.146 271.2)
XYZ	xyz(4.8687, 3.0645, 19.7330)
Luminance	0.0307 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D257D #7D751D

analogous

#1D557D #1D257D #451D7D

triadic

#1D257D #7D1D25 #257D1D

tetradic

#1D257D #7D1D55 #7D751D #1D7D45

square

#1D257D #7D1D55 #7D751D #1D7D45

split-complementary

#1D257D #7D451D #557D1D

monochromatic

#06081A #11164B #1D257D #2934AF #414ED3

Accessibility & contrast

On white

13.02

#1D257D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#1D257D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D257D

13.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D257D	#FFFFFF	#000000	##FFFFFF
##1D257D	1.00	13.02	1.61	13.02
#FFFFFF	13.02	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003680

Deuteranopia (green-blind)

#002C7B

Tritanopia (blue-blind)

#003D4D

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1d257d;
/* rgb */ color: rgb(29, 37, 125);
/* oklch */ color: oklch(32.5% 0.146 271.2);

Tailwind

colors: {
  custom: {
    50: '#6a60a4',
    500: '#1d257d',
    950: '#000000',
  },
}

SCSS

$custom: #1d257d;
$custom-light: #6a60a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1d257d",
  "rgb": {
    "r": 29,
    "g": 37,
    "b": 125
  },
  "hsl": {
    "h": 235,
    "s": 62.338,
    "l": 30.196
  },
  "oklch": {
    "l": 0.32486,
    "c": 0.14639,
    "h": 271.2
  },
  "luminance": 0.03065
}

Semantic roles & 50–950 ramp

primary

#1D257D

secondary

#B1A845

accent

#D842E5

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #1D257D

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

Preview Lab → · Contrast checker → · Palette generator →