#28637C#28637C

#28637C is a mid, moderate cyan. Relative luminance 0.108; OKLCH L 47.2% C 0.073 H 229.1°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#28637C
RGB	rgb(40, 99, 124)
HSL	hsl(198, 51%, 32%)
HSV	hsv(198, 68%, 49%)
CMYK	cmyk(67.7%, 20.2%, 0%, 51.4%)
CIE-LAB	lab(39.29, -10.65, -19.64)
CIE-LCH	lch(39.29, 22.34, 241.53°)
OKLab	oklab(47.22% -0.0476 -0.0549)
OKLCH	oklch(47.22% 0.073 229.1)
XYZ	xyz(8.9736, 10.8291, 20.6822)
Luminance	0.1083 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28637C #7C4128

analogous

#287C6B #28637C #28397C

triadic

#28637C #7C2863 #637C28

tetradic

#28637C #6B287C #7C4128 #397C28

square

#28637C #6B287C #7C4128 #397C28

split-complementary

#28637C #7C2839 #7C6B28

monochromatic

#0A191F #193E4E #28637C #3788AA #56A6C8

Accessibility & contrast

On white

6.63

#28637C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#28637C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #28637C

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28637C	#FFFFFF	#000000	##FFFFFF
##28637C	1.00	6.63	3.17	6.63
#FFFFFF	6.63	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#56617D

Deuteranopia (green-blind)

#4A597C

Tritanopia (blue-blind)

#006A6B

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #28637c;
/* rgb */ color: rgb(40, 99, 124);
/* oklch */ color: oklch(47.2% 0.073 229.1);

Tailwind

colors: {
  custom: {
    50: '#6c8fa2',
    500: '#28637c',
    950: '#000000',
  },
}

SCSS

$custom: #28637c;
$custom-light: #6c8fa2;
$custom-dark: #000000;

JSON

{
  "hex": "#28637c",
  "rgb": {
    "r": 40,
    "g": 99,
    "b": 124
  },
  "hsl": {
    "h": 197.857,
    "s": 51.22,
    "l": 32.157
  },
  "oklch": {
    "l": 0.47217,
    "c": 0.07267,
    "h": 229.1
  },
  "luminance": 0.1083
}

Semantic roles & 50–950 ramp

primary

#28637C

secondary

#AD6D52

accent

#774DDB

background

#F6F8F9

surface

#ECF0F2

border

#C7CBCC

text

#070C0F

muted

#7A7D7E

Preview Lab

Preview with #28637C

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

Preview Lab → · Contrast checker → · Palette generator →