#28637A#28637A

#28637A is a mid, moderate cyan. Relative luminance 0.108; OKLCH L 47.1% C 0.071 H 227.0°. Best body text is #FFFFFF at 6.65:1 contrast (WCAG AA passes).

Color values

HEX	#28637A
RGB	rgb(40, 99, 122)
HSL	hsl(197, 51%, 32%)
HSV	hsv(197, 67%, 48%)
CMYK	cmyk(67.2%, 18.9%, 0%, 52.2%)
CIE-LAB	lab(39.21, -11.35, -18.55)
CIE-LCH	lch(39.21, 21.75, 238.55°)
OKLab	oklab(47.12% -0.0484 -0.0518)
OKLCH	oklch(47.12% 0.071 227)
XYZ	xyz(8.8484, 10.7790, 20.0228)
Luminance	0.1078 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28637A #7A3F28

analogous

#287A68 #28637A #283A7A

triadic

#28637A #7A2863 #637A28

tetradic

#28637A #68287A #7A3F28 #3A7A28

square

#28637A #68287A #7A3F28 #3A7A28

split-complementary

#28637A #7A283A #7A6828

monochromatic

#0A181E #193E4C #28637A #3788A8 #55A7C7

Accessibility & contrast

On white

6.65

#28637A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#28637A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #28637A

6.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28637A	#FFFFFF	#000000	##FFFFFF
##28637A	1.00	6.65	3.16	6.65
#FFFFFF	6.65	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#57617B

Deuteranopia (green-blind)

#4B597A

Tritanopia (blue-blind)

#006A6A

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #28637a;
/* rgb */ color: rgb(40, 99, 122);
/* oklch */ color: oklch(47.1% 0.071 227.0);

Tailwind

colors: {
  custom: {
    50: '#6c8fa0',
    500: '#28637a',
    950: '#000000',
  },
}

SCSS

$custom: #28637a;
$custom-light: #6c8fa0;
$custom-dark: #000000;

JSON

{
  "hex": "#28637a",
  "rgb": {
    "r": 40,
    "g": 99,
    "b": 122
  },
  "hsl": {
    "h": 196.829,
    "s": 50.617,
    "l": 31.765
  },
  "oklch": {
    "l": 0.47121,
    "c": 0.07089,
    "h": 227
  },
  "luminance": 0.1078
}

Semantic roles & 50–950 ramp

primary

#28637A

secondary

#AC6B52

accent

#754EDA

background

#F6F8F9

surface

#ECF0F2

border

#C7CBCC

text

#070C0E

muted

#7A7D7E

Preview Lab

Preview with #28637A

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

Preview Lab → · Contrast checker → · Palette generator →