#181B86#181B86

#181B86 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.6% C 0.170 H 270.2°. Best body text is #FFFFFF at 13.64:1 contrast (WCAG AA passes).

Color values

HEX	#181B86
RGB	rgb(24, 27, 134)
HSL	hsl(238, 70%, 31%)
HSV	hsv(238, 82%, 53%)
CMYK	cmyk(82.1%, 79.9%, 0%, 47.5%)
CIE-LAB	lab(18.79, 38.24, -58.78)
CIE-LCH	lch(18.79, 70.13, 303.05°)
OKLab	oklab(31.63% 0.0006 -0.1702)
OKLCH	oklch(31.63% 0.17 270.2)
XYZ	xyz(5.0702, 2.6987, 22.8033)
Luminance	0.0270 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181B86 #868318

analogous

#185286 #181B86 #4C1886

triadic

#181B86 #86181B #1B8618

tetradic

#181B86 #861852 #868318 #18864C

square

#181B86 #861852 #868318 #18864C

split-complementary

#181B86 #864C18 #528618

monochromatic

#05061E #0F1152 #181B86 #2125BA #3C41DC

Accessibility & contrast

On white

13.64

#181B86 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#181B86 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181B86

13.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181B86	#FFFFFF	#000000	##FFFFFF
##181B86	1.00	13.64	1.54	13.64
#FFFFFF	13.64	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003389

Deuteranopia (green-blind)

#002884

Tritanopia (blue-blind)

#003C50

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #181b86;
/* rgb */ color: rgb(24, 27, 134);
/* oklch */ color: oklch(31.6% 0.170 270.2);

Tailwind

colors: {
  custom: {
    50: '#6b59aa',
    500: '#181b86',
    950: '#000000',
  },
}

SCSS

$custom: #181b86;
$custom-light: #6b59aa;
$custom-dark: #000000;

JSON

{
  "hex": "#181b86",
  "rgb": {
    "r": 24,
    "g": 27,
    "b": 134
  },
  "hsl": {
    "h": 238.364,
    "s": 69.62,
    "l": 30.98
  },
  "oklch": {
    "l": 0.3163,
    "c": 0.17024,
    "h": 270.2
  },
  "luminance": 0.02699
}

Semantic roles & 50–950 ramp

primary

#181B86

secondary

#BAB640

accent

#E83BEC

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #181B86

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

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