#183153#183153

#183153 is a dark, moderate cyan. Relative luminance 0.030; OKLCH L 31.2% C 0.069 H 256.6°. Best body text is #FFFFFF at 13.10:1 contrast (WCAG AA passes).

Color values

HEX	#183153
RGB	rgb(24, 49, 83)
HSL	hsl(215, 55%, 21%)
HSV	hsv(215, 71%, 33%)
CMYK	cmyk(71.1%, 41%, 0%, 67.5%)
CIE-LAB	lab(20.10, 3.02, -23.58)
CIE-LCH	lch(20.10, 23.77, 277.30°)
OKLab	oklab(31.2% -0.0159 -0.067)
OKLCH	oklch(31.2% 0.069 256.6)
XYZ	xyz(3.0358, 3.0151, 8.6039)
Luminance	0.0301 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183153 #533A18

analogous

#184E53 #183153 #1C1853

triadic

#183153 #531831 #315318

tetradic

#183153 #53184E #533A18 #18531C

square

#183153 #53184E #533A18 #18531C

split-complementary

#183153 #531C18 #4E5318

monochromatic

#070E18 #0A1524 #183153 #264D82 #3369B2

Accessibility & contrast

On white

13.10

#183153 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#183153 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183153

13.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183153	#FFFFFF	#000000	##FFFFFF
##183153	1.00	13.10	1.60	13.10
#FFFFFF	13.10	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#223454

Deuteranopia (green-blind)

#1A2E52

Tritanopia (blue-blind)

#00393E

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #183153;
/* rgb */ color: rgb(24, 49, 83);
/* oklch */ color: oklch(31.2% 0.069 256.6);

Tailwind

colors: {
  custom: {
    50: '#5c6883',
    500: '#183153',
    950: '#000000',
  },
}

SCSS

$custom: #183153;
$custom-light: #5c6883;
$custom-dark: #000000;

JSON

{
  "hex": "#183153",
  "rgb": {
    "r": 24,
    "g": 49,
    "b": 83
  },
  "hsl": {
    "h": 214.576,
    "s": 55.14,
    "l": 20.98
  },
  "oklch": {
    "l": 0.31196,
    "c": 0.06886,
    "h": 256.6
  },
  "luminance": 0.03015
}

Semantic roles & 50–950 ramp

primary

#183153

secondary

#8A693D

accent

#9F49DE

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04060A

muted

#797A7C

Preview Lab

Preview with #183153

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

Preview Lab → · Contrast checker → · Palette generator →