#28657E#28657E

#28657E is a mid, moderate cyan. Relative luminance 0.113; OKLCH L 47.8% C 0.074 H 228.4°. Best body text is #FFFFFF at 6.46:1 contrast (WCAG AA passes).

Color values

HEX	#28657E
RGB	rgb(40, 101, 126)
HSL	hsl(197, 52%, 33%)
HSV	hsv(197, 68%, 49%)
CMYK	cmyk(68.3%, 19.8%, 0%, 50.6%)
CIE-LAB	lab(40.02, -11.13, -19.73)
CIE-LCH	lch(40.02, 22.65, 240.58°)
OKLab	oklab(47.83% -0.049 -0.0552)
OKLCH	oklch(47.83% 0.074 228.4)
XYZ	xyz(9.2932, 11.2638, 21.4190)
Luminance	0.1127 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28657E #7E4128

analogous

#287E6C #28657E #283A7E

triadic

#28657E #7E2865 #657E28

tetradic

#28657E #6C287E #7E4128 #3A7E28

square

#28657E #6C287E #7E4128 #3A7E28

split-complementary

#28657E #7E283A #7E6C28

monochromatic

#0B1B21 #194050 #28657E #378AAC #57A8CA

Accessibility & contrast

On white

6.46

#28657E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#28657E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #28657E

6.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28657E	#FFFFFF	#000000	##FFFFFF
##28657E	1.00	6.46	3.25	6.46
#FFFFFF	6.46	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58637F

Deuteranopia (green-blind)

#4C5A7E

Tritanopia (blue-blind)

#006C6D

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #28657e;
/* rgb */ color: rgb(40, 101, 126);
/* oklch */ color: oklch(47.8% 0.074 228.4);

Tailwind

colors: {
  custom: {
    50: '#6d91a3',
    500: '#28657e',
    950: '#000000',
  },
}

SCSS

$custom: #28657e;
$custom-light: #6d91a3;
$custom-dark: #000000;

JSON

{
  "hex": "#28657e",
  "rgb": {
    "r": 40,
    "g": 101,
    "b": 126
  },
  "hsl": {
    "h": 197.442,
    "s": 51.807,
    "l": 32.549
  },
  "oklch": {
    "l": 0.47828,
    "c": 0.07382,
    "h": 228.4
  },
  "luminance": 0.11265
}

Semantic roles & 50–950 ramp

primary

#28657E

secondary

#AF6E53

accent

#764DDB

background

#F6F8FA

surface

#ECF0F3

border

#C7CBCD

text

#080C0F

muted

#7B7D7F

Preview Lab

Preview with #28657E

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

Preview Lab → · Contrast checker → · Palette generator →