#1D318D#1D318D

#1D318D is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.3% C 0.154 H 268.0°. Best body text is #FFFFFF at 11.19:1 contrast (WCAG AA passes).

Color values

HEX	#1D318D
RGB	rgb(29, 49, 141)
HSL	hsl(229, 66%, 33%)
HSV	hsv(229, 79%, 55%)
CMYK	cmyk(79.4%, 65.2%, 0%, 44.7%)
CIE-LAB	lab(24.89, 27.28, -53.10)
CIE-LCH	lch(24.89, 59.70, 297.19°)
OKLab	oklab(36.32% -0.0054 -0.1536)
OKLCH	oklch(36.32% 0.154 268)
XYZ	xyz(6.4111, 4.3802, 25.7017)
Luminance	0.0438 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D318D #8D791D

analogous

#1D698D #1D318D #411D8D

triadic

#1D318D #8D1D31 #318D1D

tetradic

#1D318D #8D1D69 #8D791D #1D8D41

square

#1D318D #8D1D69 #8D791D #1D8D41

split-complementary

#1D318D #8D411D #698D1D

monochromatic

#080E27 #131F5A #1D318D #2743C0 #4B64DA

Accessibility & contrast

On white

11.19

#1D318D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#1D318D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D318D

11.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D318D	#FFFFFF	#000000	##FFFFFF
##1D318D	1.00	11.19	1.88	11.19
#FFFFFF	11.19	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004090

Deuteranopia (green-blind)

#00368B

Tritanopia (blue-blind)

#00495A

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1d318d;
/* rgb */ color: rgb(29, 49, 141);
/* oklch */ color: oklch(36.3% 0.154 268.0);

Tailwind

colors: {
  custom: {
    50: '#6d69af',
    500: '#1d318d',
    950: '#000000',
  },
}

SCSS

$custom: #1d318d;
$custom-light: #6d69af;
$custom-dark: #000000;

JSON

{
  "hex": "#1d318d",
  "rgb": {
    "r": 29,
    "g": 49,
    "b": 141
  },
  "hsl": {
    "h": 229.286,
    "s": 65.882,
    "l": 33.333
  },
  "oklch": {
    "l": 0.36315,
    "c": 0.15372,
    "h": 268
  },
  "luminance": 0.04381
}

Semantic roles & 50–950 ramp

primary

#1D318D

secondary

#BCA84A

accent

#CA3FE9

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #1D318D

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

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