#284B74#284B74

#284B74 is a dark, moderate cyan. Relative luminance 0.067; OKLCH L 40.7% C 0.080 H 253.6°. Best body text is #FFFFFF at 8.94:1 contrast (WCAG AA passes).

Color values

HEX	#284B74
RGB	rgb(40, 75, 116)
HSL	hsl(212, 49%, 31%)
HSV	hsv(212, 66%, 45%)
CMYK	cmyk(65.5%, 35.3%, 0%, 54.5%)
CIE-LAB	lab(31.22, 1.40, -27.28)
CIE-LCH	lch(31.22, 27.32, 272.93°)
OKLab	oklab(40.7% -0.0227 -0.0772)
OKLCH	oklch(40.7% 0.08 253.6)
XYZ	xyz(6.5424, 6.7436, 17.4765)
Luminance	0.0674 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284B74 #745128

analogous

#287174 #284B74 #2B2874

triadic

#284B74 #74284B #4B7428

tetradic

#284B74 #742871 #745128 #28742B

square

#284B74 #742871 #745128 #28742B

split-complementary

#284B74 #742B28 #717428

monochromatic

#091019 #182E46 #284B74 #3868A2 #5387C4

Accessibility & contrast

On white

8.94

#284B74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#284B74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284B74

8.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284B74	#FFFFFF	#000000	##FFFFFF
##284B74	1.00	8.94	2.35	8.94
#FFFFFF	8.94	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#394D76

Deuteranopia (green-blind)

#2F4673

Tritanopia (blue-blind)

#00545A

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #284b74;
/* rgb */ color: rgb(40, 75, 116);
/* oklch */ color: oklch(40.7% 0.080 253.6);

Tailwind

colors: {
  custom: {
    50: '#6a7d9c',
    500: '#284b74',
    950: '#000000',
  },
}

SCSS

$custom: #284b74;
$custom-light: #6a7d9c;
$custom-dark: #000000;

JSON

{
  "hex": "#284b74",
  "rgb": {
    "r": 40,
    "g": 75,
    "b": 116
  },
  "hsl": {
    "h": 212.368,
    "s": 48.718,
    "l": 30.588
  },
  "oklch": {
    "l": 0.40704,
    "c": 0.08049,
    "h": 253.6
  },
  "luminance": 0.06744
}

Semantic roles & 50–950 ramp

primary

#284B74

secondary

#A67F52

accent

#9950D8

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#07090E

muted

#7A7B7E

Preview Lab

Preview with #284B74

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

Preview Lab → · Contrast checker → · Palette generator →