#284B72#284B72

#284B72 is a dark, moderate cyan. Relative luminance 0.067; OKLCH L 40.6% C 0.078 H 252.5°. Best body text is #FFFFFF at 8.98:1 contrast (WCAG AA passes).

Color values

HEX	#284B72
RGB	rgb(40, 75, 114)
HSL	hsl(212, 48%, 30%)
HSV	hsv(212, 65%, 45%)
CMYK	cmyk(64.9%, 34.2%, 0%, 55.3%)
CIE-LAB	lab(31.11, 0.65, -26.20)
CIE-LCH	lch(31.11, 26.21, 271.42°)
OKLab	oklab(40.58% -0.0233 -0.0741)
OKLCH	oklch(40.58% 0.078 252.5)
XYZ	xyz(6.4273, 6.6976, 16.8704)
Luminance	0.0670 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284B72 #724F28

analogous

#287072 #284B72 #2A2872

triadic

#284B72 #72284B #4B7228

tetradic

#284B72 #722870 #724F28 #28722A

square

#284B72 #722870 #724F28 #28722A

split-complementary

#284B72 #722A28 #707228

monochromatic

#080F17 #182D45 #284B72 #38699F #5287C2

Accessibility & contrast

On white

8.98

#284B72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#284B72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284B72

8.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284B72	#FFFFFF	#000000	##FFFFFF
##284B72	1.00	8.98	2.34	8.98
#FFFFFF	8.98	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A4D74

Deuteranopia (green-blind)

#304671

Tritanopia (blue-blind)

#005459

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #284b72;
/* rgb */ color: rgb(40, 75, 114);
/* oklch */ color: oklch(40.6% 0.078 252.5);

Tailwind

colors: {
  custom: {
    50: '#6a7d9b',
    500: '#284b72',
    950: '#000000',
  },
}

SCSS

$custom: #284b72;
$custom-light: #6a7d9b;
$custom-dark: #000000;

JSON

{
  "hex": "#284b72",
  "rgb": {
    "r": 40,
    "g": 75,
    "b": 114
  },
  "hsl": {
    "h": 211.622,
    "s": 48.052,
    "l": 30.196
  },
  "oklch": {
    "l": 0.40584,
    "c": 0.07764,
    "h": 252.5
  },
  "luminance": 0.06698
}

Semantic roles & 50–950 ramp

primary

#284B72

secondary

#A47D52

accent

#9850D8

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#07090E

muted

#7A7B7E

Preview Lab

Preview with #284B72

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

Preview Lab → · Contrast checker → · Palette generator →