#184F81#184F81

#184F81 is a dark, moderate cyan. Relative luminance 0.074; OKLCH L 41.9% C 0.101 H 250.0°. Best body text is #FFFFFF at 8.49:1 contrast (WCAG AA passes).

Color values

HEX	#184F81
RGB	rgb(24, 79, 129)
HSL	hsl(209, 69%, 30%)
HSV	hsv(209, 81%, 51%)
CMYK	cmyk(81.4%, 38.8%, 0%, 49.4%)
CIE-LAB	lab(32.64, 1.27, -33.17)
CIE-LCH	lch(32.64, 33.19, 272.20°)
OKLab	oklab(41.89% -0.0345 -0.0946)
OKLCH	oklch(41.89% 0.101 250)
XYZ	xyz(7.1336, 7.3703, 21.8113)
Luminance	0.0737 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#184F81 #814A18

analogous

#18817E #184F81 #181B81

triadic

#184F81 #81184F #4F8118

tetradic

#184F81 #7E1881 #814A18 #1B8118

square

#184F81 #7E1881 #814A18 #1B8118

split-complementary

#184F81 #81181B #817E18

monochromatic

#05101A #0E2F4D #184F81 #226FB5 #398EDA

Accessibility & contrast

On white

8.49

#184F81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#184F81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #184F81

8.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##184F81	#FFFFFF	#000000	##FFFFFF
##184F81	1.00	8.49	2.47	8.49
#FFFFFF	8.49	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#375283

Deuteranopia (green-blind)

#274880

Tritanopia (blue-blind)

#005B61

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #184f81;
/* rgb */ color: rgb(24, 79, 129);
/* oklch */ color: oklch(41.9% 0.101 250.0);

Tailwind

colors: {
  custom: {
    50: '#677fa6',
    500: '#184f81',
    950: '#000000',
  },
}

SCSS

$custom: #184f81;
$custom-light: #677fa6;
$custom-dark: #000000;

JSON

{
  "hex": "#184f81",
  "rgb": {
    "r": 24,
    "g": 79,
    "b": 129
  },
  "hsl": {
    "h": 208.571,
    "s": 68.627,
    "l": 30
  },
  "oklch": {
    "l": 0.41892,
    "c": 0.10068,
    "h": 250
  },
  "luminance": 0.07371
}

Semantic roles & 50–950 ramp

primary

#184F81

secondary

#B57840

accent

#903CEB

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #184F81

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

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