#284B60#284B60

#284B60 is a dark, muted cyan. Relative luminance 0.063; OKLCH L 39.6% C 0.054 H 236.7°. Best body text is #FFFFFF at 9.27:1 contrast (WCAG AA passes).

Color values

HEX	#284B60
RGB	rgb(40, 75, 96)
HSL	hsl(203, 41%, 27%)
HSV	hsv(203, 58%, 38%)
CMYK	cmyk(58.3%, 21.9%, 0%, 62.4%)
CIE-LAB	lab(30.22, -5.83, -16.18)
CIE-LCH	lch(30.22, 17.20, 250.20°)
OKLab	oklab(39.6% -0.0297 -0.0451)
OKLCH	oklch(39.6% 0.054 236.7)
XYZ	xyz(5.5017, 6.3273, 11.9954)
Luminance	0.0633 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284B60 #603D28

analogous

#286059 #284B60 #282F60

triadic

#284B60 #60284B #4B6028

tetradic

#284B60 #592860 #603D28 #2F6028

square

#284B60 #592860 #603D28 #2F6028

split-complementary

#284B60 #60282F #605928

monochromatic

#091116 #162935 #284B60 #3A6D8B #4D8EB5

Accessibility & contrast

On white

9.27

#284B60 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#284B60 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284B60

9.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284B60	#FFFFFF	#000000	##FFFFFF
##284B60	1.00	9.27	2.27	9.27
#FFFFFF	9.27	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#414A61

Deuteranopia (green-blind)

#3A4560

Tritanopia (blue-blind)

#015052

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #284b60;
/* rgb */ color: rgb(40, 75, 96);
/* oklch */ color: oklch(39.6% 0.054 236.7);

Tailwind

colors: {
  custom: {
    50: '#677d8d',
    500: '#284b60',
    950: '#000000',
  },
}

SCSS

$custom: #284b60;
$custom-light: #677d8d;
$custom-dark: #000000;

JSON

{
  "hex": "#284b60",
  "rgb": {
    "r": 40,
    "g": 75,
    "b": 96
  },
  "hsl": {
    "h": 202.5,
    "s": 41.176,
    "l": 26.667
  },
  "oklch": {
    "l": 0.39596,
    "c": 0.05403,
    "h": 236.7
  },
  "luminance": 0.06328
}

Semantic roles & 50–950 ramp

primary

#284B60

secondary

#936A51

accent

#8557D1

background

#F6F7F8

surface

#EBEEF0

border

#C6C9CB

text

#06090C

muted

#7A7B7D

Preview Lab

Preview with #284B60

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

Preview Lab → · Contrast checker → · Palette generator →