#1D248B#1D248B

#1D248B is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.8% C 0.166 H 270.6°. Best body text is #FFFFFF at 12.52:1 contrast (WCAG AA passes).

Color values

HEX	#1D248B
RGB	rgb(29, 36, 139)
HSL	hsl(236, 65%, 33%)
HSV	hsv(236, 79%, 55%)
CMYK	cmyk(79.1%, 74.1%, 0%, 45.5%)
CIE-LAB	lab(21.53, 35.04, -57.38)
CIE-LCH	lch(21.53, 67.24, 301.41°)
OKLab	oklab(33.81% 0.0018 -0.1662)
OKLCH	oklch(33.81% 0.166 270.6)
XYZ	xyz(5.7962, 3.3864, 24.7693)
Luminance	0.0339 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D248B #8B841D

analogous

#1D5B8B #1D248B #4D1D8B

triadic

#1D248B #8B1D24 #248B1D

tetradic

#1D248B #8B1D5B #8B841D #1D8B4D

square

#1D248B #8B1D5B #8B841D #1D8B4D

split-complementary

#1D248B #8B4D1D #5B8B1D

monochromatic

#080A26 #121758 #1D248B #2831BE #4952D9

Accessibility & contrast

On white

12.52

#1D248B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1D248B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D248B

12.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D248B	#FFFFFF	#000000	##FFFFFF
##1D248B	1.00	12.52	1.68	12.52
#FFFFFF	12.52	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00398E

Deuteranopia (green-blind)

#002E89

Tritanopia (blue-blind)

#004155

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1d248b;
/* rgb */ color: rgb(29, 36, 139);
/* oklch */ color: oklch(33.8% 0.166 270.6);

Tailwind

colors: {
  custom: {
    50: '#6d5fae',
    500: '#1d248b',
    950: '#000000',
  },
}

SCSS

$custom: #1d248b;
$custom-light: #6d5fae;
$custom-dark: #000000;

JSON

{
  "hex": "#1d248b",
  "rgb": {
    "r": 29,
    "g": 36,
    "b": 139
  },
  "hsl": {
    "h": 236.182,
    "s": 65.476,
    "l": 32.941
  },
  "oklch": {
    "l": 0.33812,
    "c": 0.16617,
    "h": 270.6
  },
  "luminance": 0.03387
}

Semantic roles & 50–950 ramp

primary

#1D248B

secondary

#BBB449

accent

#DE3FE8

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080510

muted

#7B797F

Preview Lab

Preview with #1D248B

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

Preview Lab → · Contrast checker → · Palette generator →