#28657D#28657D

#28657D is a mid, moderate cyan. Relative luminance 0.112; OKLCH L 47.8% C 0.073 H 227.3°. Best body text is #FFFFFF at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#28657D
RGB	rgb(40, 101, 125)
HSL	hsl(197, 52%, 32%)
HSV	hsv(197, 68%, 49%)
CMYK	cmyk(68%, 19.2%, 0%, 51%)
CIE-LAB	lab(39.98, -11.47, -19.19)
CIE-LCH	lch(39.98, 22.36, 239.12°)
OKLab	oklab(47.78% -0.0494 -0.0536)
OKLCH	oklch(47.78% 0.073 227.3)
XYZ	xyz(9.2290, 11.2382, 21.0809)
Luminance	0.1124 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28657D #7D4028

analogous

#287D6A #28657D #283B7D

triadic

#28657D #7D2865 #657D28

tetradic

#28657D #6A287D #7D4028 #3B7D28

square

#28657D #6A287D #7D4028 #3B7D28

split-complementary

#28657D #7D283B #7D6A28

monochromatic

#0A1A20 #19404F #28657D #378AAB #56A9C9

Accessibility & contrast

On white

6.47

#28657D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#28657D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #28657D

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28657D	#FFFFFF	#000000	##FFFFFF
##28657D	1.00	6.47	3.25	6.47
#FFFFFF	6.47	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58637E

Deuteranopia (green-blind)

#4C5A7D

Tritanopia (blue-blind)

#006C6D

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #28657d;
/* rgb */ color: rgb(40, 101, 125);
/* oklch */ color: oklch(47.8% 0.073 227.3);

Tailwind

colors: {
  custom: {
    50: '#6c91a2',
    500: '#28657d',
    950: '#000000',
  },
}

SCSS

$custom: #28657d;
$custom-light: #6c91a2;
$custom-dark: #000000;

JSON

{
  "hex": "#28657d",
  "rgb": {
    "r": 40,
    "g": 101,
    "b": 125
  },
  "hsl": {
    "h": 196.941,
    "s": 51.515,
    "l": 32.353
  },
  "oklch": {
    "l": 0.4778,
    "c": 0.07294,
    "h": 227.3
  },
  "luminance": 0.11239
}

Semantic roles & 50–950 ramp

primary

#28657D

secondary

#AE6D53

accent

#754DDB

background

#F6F8FA

surface

#ECF0F3

border

#C7CBCD

text

#080C0F

muted

#7B7D7F

Preview Lab

Preview with #28657D

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

Preview Lab → · Contrast checker → · Palette generator →