#284D7B#284D7B

#284D7B is a dark, moderate cyan. Relative luminance 0.072; OKLCH L 41.6% C 0.088 H 254.9°. Best body text is #FFFFFF at 8.61:1 contrast (WCAG AA passes).

Color values

HEX	#284D7B
RGB	rgb(40, 77, 123)
HSL	hsl(213, 51%, 32%)
HSV	hsv(213, 67%, 48%)
CMYK	cmyk(67.5%, 37.4%, 0%, 51.8%)
CIE-LAB	lab(32.23, 2.71, -30.05)
CIE-LCH	lch(32.23, 30.17, 275.15°)
OKLab	oklab(41.62% -0.023 -0.0853)
OKLCH	oklch(41.62% 0.088 254.9)
XYZ	xyz(7.1028, 7.1882, 19.7482)
Luminance	0.0719 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284D7B #7B5628

analogous

#28777B #284D7B #2D287B

triadic

#284D7B #7B284D #4D7B28

tetradic

#284D7B #7B2877 #7B5628 #287B2D

square

#284D7B #7B2877 #7B5628 #287B2D

split-complementary

#284D7B #7B2D28 #777B28

monochromatic

#0A131F #19304D #284D7B #376AA9 #5689C8

Accessibility & contrast

On white

8.61

#284D7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#284D7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284D7B

8.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284D7B	#FFFFFF	#000000	##FFFFFF
##284D7B	1.00	8.61	2.44	8.61
#FFFFFF	8.61	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#39507D

Deuteranopia (green-blind)

#2D487A

Tritanopia (blue-blind)

#00585E

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #284d7b;
/* rgb */ color: rgb(40, 77, 123);
/* oklch */ color: oklch(41.6% 0.088 254.9);

Tailwind

colors: {
  custom: {
    50: '#6b7ea1',
    500: '#284d7b',
    950: '#000000',
  },
}

SCSS

$custom: #284d7b;
$custom-light: #6b7ea1;
$custom-dark: #000000;

JSON

{
  "hex": "#284d7b",
  "rgb": {
    "r": 40,
    "g": 77,
    "b": 123
  },
  "hsl": {
    "h": 213.253,
    "s": 50.92,
    "l": 31.961
  },
  "oklch": {
    "l": 0.41624,
    "c": 0.08832,
    "h": 254.9
  },
  "luminance": 0.07189
}

Semantic roles & 50–950 ramp

primary

#284D7B

secondary

#AD8452

accent

#9C4DDA

background

#F6F7F9

surface

#ECEEF2

border

#C7C9CC

text

#07090F

muted

#7A7B7E

Preview Lab

Preview with #284D7B

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

Preview Lab → · Contrast checker → · Palette generator →