#284D74#284D74

#284D74 is a dark, moderate cyan. Relative luminance 0.070; OKLCH L 41.2% C 0.078 H 251.4°. Best body text is #FFFFFF at 8.74:1 contrast (WCAG AA passes).

Color values

HEX	#284D74
RGB	rgb(40, 77, 116)
HSL	hsl(211, 49%, 31%)
HSV	hsv(211, 66%, 45%)
CMYK	cmyk(65.5%, 33.6%, 0%, 54.5%)
CIE-LAB	lab(31.85, 0.09, -26.29)
CIE-LCH	lch(31.85, 26.29, 270.19°)
OKLab	oklab(41.2% -0.025 -0.0743)
OKLCH	oklch(41.2% 0.078 251.4)
XYZ	xyz(6.6802, 7.0192, 17.5224)
Luminance	0.0702 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284D74 #744F28

analogous

#287374 #284D74 #292874

triadic

#284D74 #74284D #4D7428

tetradic

#284D74 #742873 #744F28 #287429

square

#284D74 #742873 #744F28 #287429

split-complementary

#284D74 #742928 #737428

monochromatic

#091119 #182F46 #284D74 #386BA2 #538AC4

Accessibility & contrast

On white

8.74

#284D74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#284D74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284D74

8.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284D74	#FFFFFF	#000000	##FFFFFF
##284D74	1.00	8.74	2.40	8.74
#FFFFFF	8.74	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C4F76

Deuteranopia (green-blind)

#324873

Tritanopia (blue-blind)

#00565B

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #284d74;
/* rgb */ color: rgb(40, 77, 116);
/* oklch */ color: oklch(41.2% 0.078 251.4);

Tailwind

colors: {
  custom: {
    50: '#6a7e9c',
    500: '#284d74',
    950: '#000000',
  },
}

SCSS

$custom: #284d74;
$custom-light: #6a7e9c;
$custom-dark: #000000;

JSON

{
  "hex": "#284d74",
  "rgb": {
    "r": 40,
    "g": 77,
    "b": 116
  },
  "hsl": {
    "h": 210.789,
    "s": 48.718,
    "l": 30.588
  },
  "oklch": {
    "l": 0.41201,
    "c": 0.0784,
    "h": 251.4
  },
  "luminance": 0.0702
}

Semantic roles & 50–950 ramp

primary

#284D74

secondary

#A67D52

accent

#9650D8

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#07090E

muted

#7A7B7E

Preview Lab

Preview with #284D74

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

Preview Lab → · Contrast checker → · Palette generator →