#183078#183078

#183078 is a dark, vivid blue. Relative luminance 0.037; OKLCH L 33.9% C 0.127 H 265.8°. Best body text is #FFFFFF at 12.12:1 contrast (WCAG AA passes).

Color values

HEX	#183078
RGB	rgb(24, 48, 120)
HSL	hsl(225, 67%, 28%)
HSV	hsv(225, 80%, 47%)
CMYK	cmyk(80%, 60%, 0%, 52.9%)
CIE-LAB	lab(22.53, 19.04, -43.78)
CIE-LCH	lch(22.53, 47.74, 293.50°)
OKLab	oklab(33.92% -0.0093 -0.1264)
OKLCH	oklch(33.92% 0.127 265.8)
XYZ	xyz(4.8226, 3.6636, 18.2186)
Luminance	0.0366 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183078 #786018

analogous

#186078 #183078 #301878

triadic

#183078 #781830 #307818

tetradic

#183078 #781860 #786018 #187830

square

#183078 #781860 #786018 #187830

split-complementary

#183078 #783018 #607818

monochromatic

#050A1A #0E1C45 #183078 #2244AB #345DD6

Accessibility & contrast

On white

12.12

#183078 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#183078 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183078

12.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183078	#FFFFFF	#000000	##FFFFFF
##183078	1.00	12.12	1.73	12.12
#FFFFFF	12.12	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A7A

Deuteranopia (green-blind)

#003277

Tritanopia (blue-blind)

#00424F

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #183078;
/* rgb */ color: rgb(24, 48, 120);
/* oklch */ color: oklch(33.9% 0.127 265.8);

Tailwind

colors: {
  custom: {
    50: '#6567a0',
    500: '#183078',
    950: '#000000',
  },
}

SCSS

$custom: #183078;
$custom-light: #6567a0;
$custom-dark: #000000;

JSON

{
  "hex": "#183078",
  "rgb": {
    "r": 24,
    "g": 48,
    "b": 120
  },
  "hsl": {
    "h": 225,
    "s": 66.667,
    "l": 28.235
  },
  "oklch": {
    "l": 0.33917,
    "c": 0.12674,
    "h": 265.8
  },
  "luminance": 0.03664
}

Semantic roles & 50–950 ramp

primary

#183078

secondary

#AD913F

accent

#BF3EEA

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07060F

muted

#7A7A7E

Preview Lab

Preview with #183078

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

Preview Lab → · Contrast checker → · Palette generator →