#284F7E#284F7E

#284F7E is a dark, moderate cyan. Relative luminance 0.075; OKLCH L 42.3% C 0.090 H 254.4°. Best body text is #FFFFFF at 8.37:1 contrast (WCAG AA passes).

Color values

HEX	#284F7E
RGB	rgb(40, 79, 126)
HSL	hsl(213, 52%, 33%)
HSV	hsv(213, 68%, 49%)
CMYK	cmyk(68.3%, 37.3%, 0%, 50.6%)
CIE-LAB	lab(33.02, 2.53, -30.66)
CIE-LCH	lch(33.02, 30.76, 274.72°)
OKLab	oklab(42.3% -0.0244 -0.087)
OKLCH	oklch(42.3% 0.09 254.4)
XYZ	xyz(7.4356, 7.5487, 20.7998)
Luminance	0.0755 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284F7E #7E5728

analogous

#287A7E #284F7E #2C287E

triadic

#284F7E #7E284F #4F7E28

tetradic

#284F7E #7E287A #7E5728 #287E2C

square

#284F7E #7E287A #7E5728 #287E2C

split-complementary

#284F7E #7E2C28 #7A7E28

monochromatic

#0B1521 #193250 #284F7E #376CAC #578BCA

Accessibility & contrast

On white

8.37

#284F7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#284F7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284F7E

8.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284F7E	#FFFFFF	#000000	##FFFFFF
##284F7E	1.00	8.37	2.51	8.37
#FFFFFF	8.37	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A5280

Deuteranopia (green-blind)

#2E4A7D

Tritanopia (blue-blind)

#005A60

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #284f7e;
/* rgb */ color: rgb(40, 79, 126);
/* oklch */ color: oklch(42.3% 0.090 254.4);

Tailwind

colors: {
  custom: {
    50: '#6c80a3',
    500: '#284f7e',
    950: '#000000',
  },
}

SCSS

$custom: #284f7e;
$custom-light: #6c80a3;
$custom-dark: #000000;

JSON

{
  "hex": "#284f7e",
  "rgb": {
    "r": 40,
    "g": 79,
    "b": 126
  },
  "hsl": {
    "h": 212.791,
    "s": 51.807,
    "l": 32.549
  },
  "oklch": {
    "l": 0.42298,
    "c": 0.09038,
    "h": 254.4
  },
  "luminance": 0.07549
}

Semantic roles & 50–950 ramp

primary

#284F7E

secondary

#AF8553

accent

#9B4DDB

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #284F7E

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

Preview Lab → · Contrast checker → · Palette generator →