#284B77#284B77

#284B77 is a dark, moderate cyan. Relative luminance 0.068; OKLCH L 40.9% C 0.085 H 255.1°. Best body text is #FFFFFF at 8.89:1 contrast (WCAG AA passes).

Color values

HEX	#284B77
RGB	rgb(40, 75, 119)
HSL	hsl(213, 50%, 31%)
HSV	hsv(213, 66%, 47%)
CMYK	cmyk(66.4%, 37%, 0%, 53.3%)
CIE-LAB	lab(31.38, 2.52, -28.90)
CIE-LCH	lch(31.38, 29.01, 274.98°)
OKLab	oklab(40.89% -0.0218 -0.0819)
OKLCH	oklch(40.89% 0.085 255.1)
XYZ	xyz(6.7197, 6.8145, 18.4104)
Luminance	0.0682 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284B77 #775428

analogous

#287277 #284B77 #2C2877

triadic

#284B77 #77284B #4B7728

tetradic

#284B77 #772872 #775428 #28772C

square

#284B77 #772872 #775428 #28772C

split-complementary

#284B77 #772C28 #727728

monochromatic

#09111B #192E49 #284B77 #3768A5 #5486C5

Accessibility & contrast

On white

8.89

#284B77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#284B77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284B77

8.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284B77	#FFFFFF	#000000	##FFFFFF
##284B77	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)

#384E79

Deuteranopia (green-blind)

#2D4676

Tritanopia (blue-blind)

#00555B

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #284b77;
/* rgb */ color: rgb(40, 75, 119);
/* oklch */ color: oklch(40.9% 0.085 255.1);

Tailwind

colors: {
  custom: {
    50: '#6a7d9e',
    500: '#284b77',
    950: '#000000',
  },
}

SCSS

$custom: #284b77;
$custom-light: #6a7d9e;
$custom-dark: #000000;

JSON

{
  "hex": "#284b77",
  "rgb": {
    "r": 40,
    "g": 75,
    "b": 119
  },
  "hsl": {
    "h": 213.418,
    "s": 49.686,
    "l": 31.176
  },
  "oklch": {
    "l": 0.40887,
    "c": 0.0848,
    "h": 255.1
  },
  "luminance": 0.06815
}

Semantic roles & 50–950 ramp

primary

#284B77

secondary

#A98252

accent

#9C4FD9

background

#F6F7F9

surface

#ECEEF2

border

#C7C9CC

text

#07090E

muted

#7A7B7E

Preview Lab

Preview with #284B77

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

Preview Lab → · Contrast checker → · Palette generator →