#181A7E#181A7E

#181A7E is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.5% C 0.161 H 270.9°. Best body text is #FFFFFF at 14.11:1 contrast (WCAG AA passes).

Color values

HEX	#181A7E
RGB	rgb(24, 26, 126)
HSL	hsl(239, 68%, 29%)
HSV	hsv(239, 81%, 49%)
CMYK	cmyk(81%, 79.4%, 0%, 50.6%)
CIE-LAB	lab(17.64, 36.03, -55.63)
CIE-LCH	lch(17.64, 66.28, 302.93°)
OKLab	oklab(30.54% 0.0025 -0.1611)
OKLCH	oklch(30.54% 0.161 270.9)
XYZ	xyz(4.5107, 2.4388, 19.9676)
Luminance	0.0244 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A7E #7E7C18

analogous

#184D7E #181A7E #49187E

triadic

#181A7E #7E181A #1A7E18

tetradic

#181A7E #7E184D #7E7C18 #187E49

square

#181A7E #7E184D #7E7C18 #187E49

split-complementary

#181A7E #7E4918 #4D7E18

monochromatic

#05051A #0E0F4B #181A7E #2225B1 #373BD9

Accessibility & contrast

On white

14.11

#181A7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#181A7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A7E

14.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A7E	#FFFFFF	#000000	##FFFFFF
##181A7E	1.00	14.11	1.49	14.11
#FFFFFF	14.11	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003081

Deuteranopia (green-blind)

#00267C

Tritanopia (blue-blind)

#00384B

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #181a7e;
/* rgb */ color: rgb(24, 26, 126);
/* oklch */ color: oklch(30.5% 0.161 270.9);

Tailwind

colors: {
  custom: {
    50: '#6958a5',
    500: '#181a7e',
    950: '#000000',
  },
}

SCSS

$custom: #181a7e;
$custom-light: #6958a5;
$custom-dark: #000000;

JSON

{
  "hex": "#181a7e",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 126
  },
  "hsl": {
    "h": 238.824,
    "s": 68,
    "l": 29.412
  },
  "oklch": {
    "l": 0.30538,
    "c": 0.1611,
    "h": 270.9
  },
  "luminance": 0.02439
}

Semantic roles & 50–950 ramp

primary

#181A7E

secondary

#B2B03F

accent

#E73DEB

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08030F

muted

#7A787F

Preview Lab

Preview with #181A7E

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

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