#181B7D#181B7D

#181B7D is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.6% C 0.159 H 270.8°. Best body text is #FFFFFF at 14.08:1 contrast (WCAG AA passes).

Color values

HEX	#181B7D
RGB	rgb(24, 27, 125)
HSL	hsl(238, 68%, 29%)
HSV	hsv(238, 81%, 49%)
CMYK	cmyk(80.8%, 78.4%, 0%, 51%)
CIE-LAB	lab(17.73, 35.08, -54.84)
CIE-LCH	lch(17.73, 65.11, 302.61°)
OKLab	oklab(30.57% 0.0024 -0.1588)
OKLCH	oklch(30.57% 0.159 270.8)
XYZ	xyz(4.4690, 2.4582, 19.6370)
Luminance	0.0246 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181B7D #7D7A18

analogous

#184E7D #181B7D #48187D

triadic

#181B7D #7D181B #1B7D18

tetradic

#181B7D #7D184E #7D7A18 #187D48

square

#181B7D #7D184E #7D7A18 #187D48

split-complementary

#181B7D #7D4818 #4E7D18

monochromatic

#05061A #0E104A #181B7D #2226B0 #373CD9

Accessibility & contrast

On white

14.08

#181B7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#181B7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181B7D

14.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181B7D	#FFFFFF	#000000	##FFFFFF
##181B7D	1.00	14.08	1.49	14.08
#FFFFFF	14.08	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003080

Deuteranopia (green-blind)

#00267B

Tritanopia (blue-blind)

#00384B

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #181b7d;
/* rgb */ color: rgb(24, 27, 125);
/* oklch */ color: oklch(30.6% 0.159 270.8);

Tailwind

colors: {
  custom: {
    50: '#6959a4',
    500: '#181b7d',
    950: '#000000',
  },
}

SCSS

$custom: #181b7d;
$custom-light: #6959a4;
$custom-dark: #000000;

JSON

{
  "hex": "#181b7d",
  "rgb": {
    "r": 24,
    "g": 27,
    "b": 125
  },
  "hsl": {
    "h": 238.218,
    "s": 67.785,
    "l": 29.216
  },
  "oklch": {
    "l": 0.30566,
    "c": 0.15884,
    "h": 270.8
  },
  "luminance": 0.02459
}

Semantic roles & 50–950 ramp

primary

#181B7D

secondary

#B2AE3F

accent

#E63DEB

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07030F

muted

#7A787F

Preview Lab

Preview with #181B7D

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

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