#28538B#28538B

#28538B is a dark, moderate cyan. Relative luminance 0.085; OKLCH L 44.1% C 0.104 H 256.0°. Best body text is #FFFFFF at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#28538B
RGB	rgb(40, 83, 139)
HSL	hsl(214, 55%, 35%)
HSV	hsv(214, 71%, 55%)
CMYK	cmyk(71.2%, 40.3%, 0%, 45.5%)
CIE-LAB	lab(35.00, 4.85, -35.51)
CIE-LCH	lch(35.00, 35.84, 277.78°)
OKLab	oklab(44.08% -0.0252 -0.1012)
OKLCH	oklch(44.08% 0.104 256)
XYZ	xyz(8.6268, 8.5008, 25.6073)
Luminance	0.0850 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28538B #8B6028

analogous

#28858B #28538B #2E288B

triadic

#28538B #8B2853 #538B28

tetradic

#28538B #8B2885 #8B6028 #288B2E

square

#28538B #8B2885 #8B6028 #288B2E

split-complementary

#28538B #8B2E28 #858B28

monochromatic

#0D1A2C #1A375B #28538B #366FBB #5D8FD0

Accessibility & contrast

On white

7.78

#28538B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#28538B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28538B

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28538B	#FFFFFF	#000000	##FFFFFF
##28538B	1.00	7.78	2.70	7.78
#FFFFFF	7.78	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#39578D

Deuteranopia (green-blind)

#2A4E8A

Tritanopia (blue-blind)

#006068

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #28538b;
/* rgb */ color: rgb(40, 83, 139);
/* oklch */ color: oklch(44.1% 0.104 256.0);

Tailwind

colors: {
  custom: {
    50: '#6e83ad',
    500: '#28538b',
    950: '#000000',
  },
}

SCSS

$custom: #28538b;
$custom-light: #6e83ad;
$custom-dark: #000000;

JSON

{
  "hex": "#28538b",
  "rgb": {
    "r": 40,
    "g": 83,
    "b": 139
  },
  "hsl": {
    "h": 213.939,
    "s": 55.307,
    "l": 35.098
  },
  "oklch": {
    "l": 0.44084,
    "c": 0.10428,
    "h": 256
  },
  "luminance": 0.08502
}

Semantic roles & 50–950 ramp

primary

#28538B

secondary

#B68D59

accent

#9E49DF

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#080A10

muted

#7B7C7F

Preview Lab

Preview with #28538B

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

Preview Lab → · Contrast checker → · Palette generator →