#181F65#181F65

#181F65 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 28.6% C 0.122 H 271.7°. Best body text is #FFFFFF at 14.76:1 contrast (WCAG AA passes).

Color values

HEX	#181F65
RGB	rgb(24, 31, 101)
HSL	hsl(235, 62%, 25%)
HSV	hsv(235, 76%, 40%)
CMYK	cmyk(76.2%, 69.3%, 0%, 60.4%)
CIE-LAB	lab(16.07, 23.46, -42.03)
CIE-LCH	lch(16.07, 48.14, 299.17°)
OKLab	oklab(28.6% 0.0036 -0.1215)
OKLCH	oklch(28.6% 0.122 271.7)
XYZ	xyz(3.2148, 2.1134, 12.5479)
Luminance	0.0211 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181F65 #655E18

analogous

#184665 #181F65 #371865

triadic

#181F65 #65181F #1F6518

tetradic

#181F65 #651846 #655E18 #186537

square

#181F65 #651846 #655E18 #186537

split-complementary

#181F65 #653718 #466518

monochromatic

#060819 #0C1034 #181F65 #242E96 #303DC8

Accessibility & contrast

On white

14.76

#181F65 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#181F65 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181F65

14.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181F65	#FFFFFF	#000000	##FFFFFF
##181F65	1.00	14.76	1.42	14.76
#FFFFFF	14.76	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C67

Deuteranopia (green-blind)

#002464

Tritanopia (blue-blind)

#00313F

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #181f65;
/* rgb */ color: rgb(24, 31, 101);
/* oklch */ color: oklch(28.6% 0.122 271.7);

Tailwind

colors: {
  custom: {
    50: '#625a92',
    500: '#181f65',
    950: '#000000',
  },
}

SCSS

$custom: #181f65;
$custom-light: #625a92;
$custom-dark: #000000;

JSON

{
  "hex": "#181f65",
  "rgb": {
    "r": 24,
    "g": 31,
    "b": 101
  },
  "hsl": {
    "h": 234.545,
    "s": 61.6,
    "l": 24.51
  },
  "oklch": {
    "l": 0.28595,
    "c": 0.12152,
    "h": 271.7
  },
  "luminance": 0.02114
}

Semantic roles & 50–950 ramp

primary

#181F65

secondary

#9B933E

accent

#D643E5

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#06040D

muted

#7A797E

Preview Lab

Preview with #181F65

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

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