#1D256A#1D256A

#1D256A is a dark, moderate blue. Relative luminance 0.026; OKLCH L 30.6% C 0.119 H 272.1°. Best body text is #FFFFFF at 13.77:1 contrast (WCAG AA passes).

Color values

HEX	#1D256A
RGB	rgb(29, 37, 106)
HSL	hsl(234, 57%, 26%)
HSV	hsv(234, 73%, 42%)
CMYK	cmyk(72.6%, 65.1%, 0%, 58.4%)
CIE-LAB	lab(18.47, 21.91, -41.37)
CIE-LCH	lch(18.47, 46.81, 297.91°)
OKLab	oklab(30.59% 0.0045 -0.1193)
OKLCH	oklch(30.59% 0.119 272.1)
XYZ	xyz(3.7689, 2.6246, 13.9409)
Luminance	0.0262 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D256A #6A621D

analogous

#1D4C6A #1D256A #3C1D6A

triadic

#1D256A #6A1D25 #256A1D

tetradic

#1D256A #6A1D4C #6A621D #1D6A3C

square

#1D256A #6A1D4C #6A621D #1D6A3C

split-complementary

#1D256A #6A3C1D #4C6A1D

monochromatic

#070818 #10143A #1D256A #2A369A #3948C9

Accessibility & contrast

On white

13.77

#1D256A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#1D256A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D256A

13.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D256A	#FFFFFF	#000000	##FFFFFF
##1D256A	1.00	13.77	1.53	13.77
#FFFFFF	13.77	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00316C

Deuteranopia (green-blind)

#002A69

Tritanopia (blue-blind)

#003643

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1d256a;
/* rgb */ color: rgb(29, 37, 106);
/* oklch */ color: oklch(30.6% 0.119 272.1);

Tailwind

colors: {
  custom: {
    50: '#655f95',
    500: '#1d256a',
    950: '#000000',
  },
}

SCSS

$custom: #1d256a;
$custom-light: #655f95;
$custom-dark: #000000;

JSON

{
  "hex": "#1d256a",
  "rgb": {
    "r": 29,
    "g": 37,
    "b": 106
  },
  "hsl": {
    "h": 233.766,
    "s": 57.037,
    "l": 26.471
  },
  "oklch": {
    "l": 0.30589,
    "c": 0.11942,
    "h": 272.1
  },
  "luminance": 0.02625
}

Semantic roles & 50–950 ramp

primary

#1D256A

secondary

#9F9544

accent

#D048E0

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040D

muted

#7A797E

Preview Lab

Preview with #1D256A

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

Preview Lab → · Contrast checker → · Palette generator →