#184B81#184B81

#184B81 is a dark, moderate cyan. Relative luminance 0.068; OKLCH L 40.9% C 0.105 H 253.0°. Best body text is #FFFFFF at 8.89:1 contrast (WCAG AA passes).

Color values

HEX	#184B81
RGB	rgb(24, 75, 129)
HSL	hsl(211, 69%, 30%)
HSV	hsv(211, 81%, 51%)
CMYK	cmyk(81.4%, 41.9%, 0%, 49.4%)
CIE-LAB	lab(31.37, 3.93, -35.18)
CIE-LCH	lch(31.37, 35.40, 276.37°)
OKLab	oklab(40.9% -0.0308 -0.1006)
OKLCH	oklch(40.9% 0.105 253)
XYZ	xyz(6.8537, 6.8105, 21.7180)
Luminance	0.0681 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#184B81 #814E18

analogous

#187F81 #184B81 #1A1881

triadic

#184B81 #81184B #4B8118

tetradic

#184B81 #81187F #814E18 #18811A

square

#184B81 #81187F #814E18 #18811A

split-complementary

#184B81 #811A18 #7F8118

monochromatic

#050F1A #0E2D4D #184B81 #2269B5 #3987DA

Accessibility & contrast

On white

8.89

#184B81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#184B81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #184B81

8.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##184B81	#FFFFFF	#000000	##FFFFFF
##184B81	1.00	8.89	2.36	8.89
#FFFFFF	8.89	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#314F83

Deuteranopia (green-blind)

#1F4580

Tritanopia (blue-blind)

#00585F

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #184b81;
/* rgb */ color: rgb(24, 75, 129);
/* oklch */ color: oklch(40.9% 0.105 253.0);

Tailwind

colors: {
  custom: {
    50: '#677ca6',
    500: '#184b81',
    950: '#000000',
  },
}

SCSS

$custom: #184b81;
$custom-light: #677ca6;
$custom-dark: #000000;

JSON

{
  "hex": "#184b81",
  "rgb": {
    "r": 24,
    "g": 75,
    "b": 129
  },
  "hsl": {
    "h": 210.857,
    "s": 68.627,
    "l": 30
  },
  "oklch": {
    "l": 0.40904,
    "c": 0.10516,
    "h": 253
  },
  "luminance": 0.06811
}

Semantic roles & 50–950 ramp

primary

#184B81

secondary

#B57C40

accent

#963CEB

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#07090F

muted

#7A7B7F

Preview Lab

Preview with #184B81

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

Preview Lab → · Contrast checker → · Palette generator →