#284E7E#284E7E

#284E7E is a dark, moderate cyan. Relative luminance 0.074; OKLCH L 42.1% C 0.091 H 255.3°. Best body text is #FFFFFF at 8.46:1 contrast (WCAG AA passes).

Color values

HEX	#284E7E
RGB	rgb(40, 78, 126)
HSL	hsl(213, 52%, 33%)
HSV	hsv(213, 68%, 49%)
CMYK	cmyk(68.3%, 38.1%, 0%, 50.6%)
CIE-LAB	lab(32.71, 3.19, -31.15)
CIE-LCH	lch(32.71, 31.32, 275.84°)
OKLab	oklab(42.06% -0.0233 -0.0885)
OKLCH	oklch(42.06% 0.091 255.3)
XYZ	xyz(7.3640, 7.4055, 20.7759)
Luminance	0.0741 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284E7E #7E5828

analogous

#28797E #284E7E #2D287E

triadic

#284E7E #7E284E #4E7E28

tetradic

#284E7E #7E2879 #7E5828 #287E2D

square

#284E7E #7E2879 #7E5828 #287E2D

split-complementary

#284E7E #7E2D28 #797E28

monochromatic

#0B1421 #193150 #284E7E #376BAC #578ACA

Accessibility & contrast

On white

8.46

#284E7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#284E7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284E7E

8.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284E7E	#FFFFFF	#000000	##FFFFFF
##284E7E	1.00	8.46	2.48	8.46
#FFFFFF	8.46	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#395180

Deuteranopia (green-blind)

#2D497D

Tritanopia (blue-blind)

#005960

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #284e7e;
/* rgb */ color: rgb(40, 78, 126);
/* oklch */ color: oklch(42.1% 0.091 255.3);

Tailwind

colors: {
  custom: {
    50: '#6c7fa3',
    500: '#284e7e',
    950: '#000000',
  },
}

SCSS

$custom: #284e7e;
$custom-light: #6c7fa3;
$custom-dark: #000000;

JSON

{
  "hex": "#284e7e",
  "rgb": {
    "r": 40,
    "g": 78,
    "b": 126
  },
  "hsl": {
    "h": 213.488,
    "s": 51.807,
    "l": 32.549
  },
  "oklch": {
    "l": 0.42055,
    "c": 0.09149,
    "h": 255.3
  },
  "luminance": 0.07406
}

Semantic roles & 50–950 ramp

primary

#284E7E

secondary

#AF8653

accent

#9C4DDB

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #284E7E

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

Preview Lab → · Contrast checker → · Palette generator →