#1D258D#1D258D

#1D258D is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.2% C 0.168 H 270.4°. Best body text is #FFFFFF at 12.34:1 contrast (WCAG AA passes).

Color values

HEX	#1D258D
RGB	rgb(29, 37, 141)
HSL	hsl(236, 66%, 33%)
HSV	hsv(236, 79%, 55%)
CMYK	cmyk(79.4%, 73.8%, 0%, 44.7%)
CIE-LAB	lab(21.97, 35.14, -57.91)
CIE-LCH	lch(21.97, 67.74, 301.25°)
OKLab	oklab(34.19% 0.001 -0.1677)
OKLCH	oklch(34.19% 0.168 270.4)
XYZ	xyz(5.9743, 3.5068, 25.5561)
Luminance	0.0351 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D258D #8D851D

analogous

#1D5D8D #1D258D #4D1D8D

triadic

#1D258D #8D1D25 #258D1D

tetradic

#1D258D #8D1D5D #8D851D #1D8D4D

square

#1D258D #8D1D5D #8D851D #1D8D4D

split-complementary

#1D258D #8D4D1D #5D8D1D

monochromatic

#080A27 #13185A #1D258D #2732C0 #4B55DA

Accessibility & contrast

On white

12.34

#1D258D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#1D258D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D258D

12.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D258D	#FFFFFF	#000000	##FFFFFF
##1D258D	1.00	12.34	1.70	12.34
#FFFFFF	12.34	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A90

Deuteranopia (green-blind)

#002F8B

Tritanopia (blue-blind)

#004356

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1d258d;
/* rgb */ color: rgb(29, 37, 141);
/* oklch */ color: oklch(34.2% 0.168 270.4);

Tailwind

colors: {
  custom: {
    50: '#6e60af',
    500: '#1d258d',
    950: '#000000',
  },
}

SCSS

$custom: #1d258d;
$custom-light: #6e60af;
$custom-dark: #000000;

JSON

{
  "hex": "#1d258d",
  "rgb": {
    "r": 29,
    "g": 37,
    "b": 141
  },
  "hsl": {
    "h": 235.714,
    "s": 65.882,
    "l": 33.333
  },
  "oklch": {
    "l": 0.34191,
    "c": 0.16769,
    "h": 270.4
  },
  "luminance": 0.03507
}

Semantic roles & 50–950 ramp

primary

#1D258D

secondary

#BCB44A

accent

#DD3FE9

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#080511

muted

#7B7980

Preview Lab

Preview with #1D258D

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

Preview Lab → · Contrast checker → · Palette generator →