#284F85#284F85

#284F85 is a dark, moderate cyan. Relative luminance 0.077; OKLCH L 42.7% C 0.100 H 257.0°. Best body text is #FFFFFF at 8.24:1 contrast (WCAG AA passes).

Color values

HEX	#284F85
RGB	rgb(40, 79, 133)
HSL	hsl(215, 54%, 34%)
HSV	hsv(215, 70%, 52%)
CMYK	cmyk(69.9%, 40.6%, 0%, 47.8%)
CIE-LAB	lab(33.43, 5.19, -34.34)
CIE-LCH	lch(33.43, 34.73, 278.59°)
OKLab	oklab(42.74% -0.0225 -0.0978)
OKLCH	oklch(42.74% 0.1 257)
XYZ	xyz(7.9032, 7.7357, 23.2624)
Luminance	0.0774 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284F85 #855E28

analogous

#287E85 #284F85 #302885

triadic

#284F85 #85284F #4F8528

tetradic

#284F85 #85287E #855E28 #288530

square

#284F85 #85287E #855E28 #288530

split-complementary

#284F85 #853028 #7E8528

monochromatic

#0C1727 #1A3356 #284F85 #366BB4 #5A8ACD

Accessibility & contrast

On white

8.24

#284F85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#284F85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284F85

8.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284F85	#FFFFFF	#000000	##FFFFFF
##284F85	1.00	8.24	2.55	8.24
#FFFFFF	8.24	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#365387

Deuteranopia (green-blind)

#284B84

Tritanopia (blue-blind)

#005B63

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #284f85;
/* rgb */ color: rgb(40, 79, 133);
/* oklch */ color: oklch(42.7% 0.100 257.0);

Tailwind

colors: {
  custom: {
    50: '#6d7fa9',
    500: '#284f85',
    950: '#000000',
  },
}

SCSS

$custom: #284f85;
$custom-light: #6d7fa9;
$custom-dark: #000000;

JSON

{
  "hex": "#284f85",
  "rgb": {
    "r": 40,
    "g": 79,
    "b": 133
  },
  "hsl": {
    "h": 214.839,
    "s": 53.757,
    "l": 33.922
  },
  "oklch": {
    "l": 0.42742,
    "c": 0.10039,
    "h": 257
  },
  "luminance": 0.07737
}

Semantic roles & 50–950 ramp

primary

#284F85

secondary

#B38C56

accent

#A04BDD

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#080A10

muted

#7A7C7F

Preview Lab

Preview with #284F85

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

Preview Lab → · Contrast checker → · Palette generator →