#180F5F#180F5F

#180F5F is a dark, vivid blue. Relative luminance 0.014; OKLCH L 25.3% C 0.132 H 276.4°. Best body text is #FFFFFF at 16.50:1 contrast (WCAG AA passes).

Color values

HEX	#180F5F
RGB	rgb(24, 15, 95)
HSL	hsl(247, 73%, 22%)
HSV	hsv(247, 84%, 37%)
CMYK	cmyk(74.7%, 84.2%, 0%, 62.7%)
CIE-LAB	lab(11.70, 31.49, -45.24)
CIE-LCH	lch(11.70, 55.13, 304.84°)
OKLab	oklab(25.27% 0.0147 -0.1308)
OKLCH	oklch(25.27% 0.132 276.4)
XYZ	xyz(2.6124, 1.3618, 10.9494)
Luminance	0.0136 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180F5F #565F0F

analogous

#0F2E5F #180F5F #400F5F

triadic

#180F5F #5F180F #0F5F18

tetradic

#180F5F #5F0F2E #565F0F #0F5F40

square

#180F5F #5F0F2E #565F0F #0F5F40

split-complementary

#180F5F #5F400F #2E5F0F

monochromatic

#07041A #0B072A #180F5F #251794 #3320C9

Accessibility & contrast

On white

16.50

#180F5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#180F5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180F5F

16.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180F5F	#FFFFFF	#000000	##FFFFFF
##180F5F	1.00	16.50	1.27	16.50
#FFFFFF	16.50	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002261

Deuteranopia (green-blind)

#001B5E

Tritanopia (blue-blind)

#002737

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #180f5f;
/* rgb */ color: rgb(24, 15, 95);
/* oklch */ color: oklch(25.3% 0.132 276.4);

Tailwind

colors: {
  custom: {
    50: '#62508d',
    500: '#180f5f',
    950: '#000000',
  },
}

SCSS

$custom: #180f5f;
$custom-light: #62508d;
$custom-dark: #000000;

JSON

{
  "hex": "#180f5f",
  "rgb": {
    "r": 24,
    "g": 15,
    "b": 95
  },
  "hsl": {
    "h": 246.75,
    "s": 72.727,
    "l": 21.569
  },
  "oklch": {
    "l": 0.25271,
    "c": 0.1316,
    "h": 276.4
  },
  "luminance": 0.01362
}

Semantic roles & 50–950 ramp

primary

#180F5F

secondary

#8D9832

accent

#EF38DB

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #180F5F

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

Preview Lab → · Contrast checker → · Palette generator →