#180E58#180E58

#180E58 is a very dark, vivid blue. Relative luminance 0.012; OKLCH L 24.3% C 0.123 H 278.0°. Best body text is #FFFFFF at 16.90:1 contrast (WCAG AA passes).

Color values

HEX	#180E58
RGB	rgb(24, 14, 88)
HSL	hsl(248, 73%, 20%)
HSV	hsv(248, 84%, 35%)
CMYK	cmyk(72.7%, 84.1%, 0%, 65.5%)
CIE-LAB	lab(10.65, 29.64, -42.27)
CIE-LCH	lch(10.65, 51.62, 305.04°)
OKLab	oklab(24.29% 0.0173 -0.1221)
OKLCH	oklch(24.29% 0.123 278)
XYZ	xyz(2.2946, 1.2126, 9.3438)
Luminance	0.0121 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180E58 #4E580E

analogous

#0E2958 #180E58 #3D0E58

triadic

#180E58 #58180E #0E5818

tetradic

#180E58 #580E29 #4E580E #0E583D

square

#180E58 #580E29 #4E580E #0E583D

split-complementary

#180E58 #583D0E #29580E

monochromatic

#07041A #0A0623 #180E58 #26168D #351FC2

Accessibility & contrast

On white

16.90

#180E58 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#180E58 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180E58

16.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180E58	#FFFFFF	#000000	##FFFFFF
##180E58	1.00	16.90	1.24	16.90
#FFFFFF	16.90	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00205A

Deuteranopia (green-blind)

#001A57

Tritanopia (blue-blind)

#002433

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #180e58;
/* rgb */ color: rgb(24, 14, 88);
/* oklch */ color: oklch(24.3% 0.123 278.0);

Tailwind

colors: {
  custom: {
    50: '#604e88',
    500: '#180e58',
    950: '#000000',
  },
}

SCSS

$custom: #180e58;
$custom-light: #604e88;
$custom-dark: #000000;

JSON

{
  "hex": "#180e58",
  "rgb": {
    "r": 24,
    "g": 14,
    "b": 88
  },
  "hsl": {
    "h": 248.108,
    "s": 72.549,
    "l": 20
  },
  "oklch": {
    "l": 0.24285,
    "c": 0.12333,
    "h": 278
  },
  "luminance": 0.01213
}

Semantic roles & 50–950 ramp

primary

#180E58

secondary

#859230

accent

#EF39D7

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#05020B

muted

#7A787C

Preview Lab

Preview with #180E58

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

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