#28557E#28557E

#28557E is a dark, moderate cyan. Relative luminance 0.085; OKLCH L 43.8% C 0.084 H 248.4°. Best body text is #FFFFFF at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#28557E
RGB	rgb(40, 85, 126)
HSL	hsl(209, 52%, 33%)
HSV	hsv(209, 68%, 49%)
CMYK	cmyk(68.3%, 32.5%, 0%, 50.6%)
CIE-LAB	lab(34.91, -1.35, -27.69)
CIE-LCH	lch(34.91, 27.72, 267.22°)
OKLab	oklab(43.78% -0.031 -0.0783)
OKLCH	oklch(43.78% 0.084 248.4)
XYZ	xyz(7.8881, 8.4537, 20.9506)
Luminance	0.0845 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28557E #7E5128

analogous

#287E7C #28557E #282A7E

triadic

#28557E #7E2855 #557E28

tetradic

#28557E #7C287E #7E5128 #2A7E28

square

#28557E #7C287E #7E5128 #2A7E28

split-complementary

#28557E #7E282A #7E7C28

monochromatic

#0B1621 #193650 #28557E #3774AC #5793CA

Accessibility & contrast

On white

7.80

#28557E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#28557E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28557E

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28557E	#FFFFFF	#000000	##FFFFFF
##28557E	1.00	7.80	2.69	7.80
#FFFFFF	7.80	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#435780

Deuteranopia (green-blind)

#374E7D

Tritanopia (blue-blind)

#005F64

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #28557e;
/* rgb */ color: rgb(40, 85, 126);
/* oklch */ color: oklch(43.8% 0.084 248.4);

Tailwind

colors: {
  custom: {
    50: '#6c84a3',
    500: '#28557e',
    950: '#000000',
  },
}

SCSS

$custom: #28557e;
$custom-light: #6c84a3;
$custom-dark: #000000;

JSON

{
  "hex": "#28557e",
  "rgb": {
    "r": 40,
    "g": 85,
    "b": 126
  },
  "hsl": {
    "h": 208.605,
    "s": 51.807,
    "l": 32.549
  },
  "oklch": {
    "l": 0.43776,
    "c": 0.08421,
    "h": 248.4
  },
  "luminance": 0.08454
}

Semantic roles & 50–950 ramp

primary

#28557E

secondary

#AF7F53

accent

#914DDB

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #28557E

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

Preview Lab → · Contrast checker → · Palette generator →