#181A7B#181A7B

#181A7B is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.2% C 0.157 H 271.1°. Best body text is #FFFFFF at 14.26:1 contrast (WCAG AA passes).

Color values

HEX	#181A7B
RGB	rgb(24, 26, 123)
HSL	hsl(239, 67%, 29%)
HSV	hsv(239, 80%, 48%)
CMYK	cmyk(80.5%, 78.9%, 0%, 51.8%)
CIE-LAB	lab(17.29, 34.97, -54.30)
CIE-LCH	lch(17.29, 64.58, 302.78°)
OKLab	oklab(30.18% 0.0031 -0.1572)
OKLCH	oklch(30.18% 0.157 271.1)
XYZ	xyz(4.3200, 2.3626, 18.9634)
Luminance	0.0236 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A7B #7B7918

analogous

#184C7B #181A7B #48187B

triadic

#181A7B #7B181A #1A7B18

tetradic

#181A7B #7B184C #7B7918 #187B48

square

#181A7B #7B184C #7B7918 #187B48

split-complementary

#181A7B #7B4818 #4C7B18

monochromatic

#05051A #0E0F48 #181A7B #2225AE #3639D8

Accessibility & contrast

On white

14.26

#181A7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#181A7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A7B

14.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A7B	#FFFFFF	#000000	##FFFFFF
##181A7B	1.00	14.26	1.47	14.26
#FFFFFF	14.26	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F7E

Deuteranopia (green-blind)

#002579

Tritanopia (blue-blind)

#003749

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #181a7b;
/* rgb */ color: rgb(24, 26, 123);
/* oklch */ color: oklch(30.2% 0.157 271.1);

Tailwind

colors: {
  custom: {
    50: '#6858a2',
    500: '#181a7b',
    950: '#000000',
  },
}

SCSS

$custom: #181a7b;
$custom-light: #6858a2;
$custom-dark: #000000;

JSON

{
  "hex": "#181a7b",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 123
  },
  "hsl": {
    "h": 238.788,
    "s": 67.347,
    "l": 28.824
  },
  "oklch": {
    "l": 0.30184,
    "c": 0.15726,
    "h": 271.1
  },
  "luminance": 0.02363
}

Semantic roles & 50–950 ramp

primary

#181A7B

secondary

#B0AD3F

accent

#E73EEA

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07030F

muted

#7A787F

Preview Lab

Preview with #181A7B

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

Preview Lab → · Contrast checker → · Palette generator →