#182F4C#182F4C

#182F4C is a dark, moderate cyan. Relative luminance 0.027; OKLCH L 30.2% C 0.060 H 255.1°. Best body text is #FFFFFF at 13.55:1 contrast (WCAG AA passes).

Color values

HEX	#182F4C
RGB	rgb(24, 47, 76)
HSL	hsl(213, 52%, 20%)
HSV	hsv(213, 68%, 30%)
CMYK	cmyk(68.4%, 38.2%, 0%, 70.2%)
CIE-LAB	lab(19.01, 1.61, -20.61)
CIE-LCH	lch(19.01, 20.67, 274.47°)
OKLab	oklab(30.2% -0.0156 -0.0583)
OKLCH	oklch(30.2% 0.06 255.1)
XYZ	xyz(2.6972, 2.7488, 7.2245)
Luminance	0.0275 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182F4C #4C3518

analogous

#18494C #182F4C #1B184C

triadic

#182F4C #4C182F #2F4C18

tetradic

#182F4C #4C1849 #4C3518 #184C1B

square

#182F4C #4C1849 #4C3518 #184C1B

split-complementary

#182F4C #4C1B18 #494C18

monochromatic

#070E17 #09121D #182F4C #274C7B #3569A9

Accessibility & contrast

On white

13.55

#182F4C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#182F4C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182F4C

13.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182F4C	#FFFFFF	#000000	##FFFFFF
##182F4C	1.00	13.55	1.55	13.55
#FFFFFF	13.55	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#23314D

Deuteranopia (green-blind)

#1C2C4B

Tritanopia (blue-blind)

#00363A

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #182f4c;
/* rgb */ color: rgb(24, 47, 76);
/* oklch */ color: oklch(30.2% 0.060 255.1);

Tailwind

colors: {
  custom: {
    50: '#5b677e',
    500: '#182f4c',
    950: '#000000',
  },
}

SCSS

$custom: #182f4c;
$custom-light: #5b677e;
$custom-dark: #000000;

JSON

{
  "hex": "#182f4c",
  "rgb": {
    "r": 24,
    "g": 47,
    "b": 76
  },
  "hsl": {
    "h": 213.462,
    "s": 52,
    "l": 19.608
  },
  "oklch": {
    "l": 0.30203,
    "c": 0.06039,
    "h": 255.1
  },
  "luminance": 0.02749
}

Semantic roles & 50–950 ramp

primary

#182F4C

secondary

#83643D

accent

#9C4CDB

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#04060A

muted

#797A7C

Preview Lab

Preview with #182F4C

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

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