#28758B#28758B

#28758B is a mid, moderate cyan. Relative luminance 0.150; OKLCH L 52.5% C 0.081 H 220.6°. Best body text is #FFFFFF at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#28758B
RGB	rgb(40, 117, 139)
HSL	hsl(193, 55%, 35%)
HSV	hsv(193, 71%, 55%)
CMYK	cmyk(71.2%, 15.8%, 0%, 45.5%)
CIE-LAB	lab(45.68, -15.78, -18.83)
CIE-LCH	lch(45.68, 24.57, 230.03°)
OKLab	oklab(52.54% -0.0614 -0.0525)
OKLCH	oklch(52.54% 0.081 220.6)
XYZ	xyz(11.8946, 15.0364, 26.6965)
Luminance	0.1504 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28758B #8B3E28

analogous

#288B6F #28758B #28448B

triadic

#28758B #8B2875 #758B28

tetradic

#28758B #6F288B #8B3E28 #448B28

square

#28758B #6F288B #8B3E28 #448B28

split-complementary

#28758B #8B2844 #8B6F28

monochromatic

#0D252C #1A4D5B #28758B #369DBB #5DB7D0

Accessibility & contrast

On white

5.24

#28758B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.01

#28758B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #28758B

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28758B	#FFFFFF	#000000	##FFFFFF
##28758B	1.00	5.24	4.01	5.24
#FFFFFF	5.24	1.00	21.00	1.00
#000000	4.01	21.00	1.00	21.00
##FFFFFF	5.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#68728C

Deuteranopia (green-blind)

#5A688B

Tritanopia (blue-blind)

#007C7C

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #28758b;
/* rgb */ color: rgb(40, 117, 139);
/* oklch */ color: oklch(52.5% 0.081 220.6);

Tailwind

colors: {
  custom: {
    50: '#709dad',
    500: '#28758b',
    950: '#000000',
  },
}

SCSS

$custom: #28758b;
$custom-light: #709dad;
$custom-dark: #000000;

JSON

{
  "hex": "#28758b",
  "rgb": {
    "r": 40,
    "g": 117,
    "b": 139
  },
  "hsl": {
    "h": 193.333,
    "s": 55.307,
    "l": 35.098
  },
  "oklch": {
    "l": 0.52538,
    "c": 0.08081,
    "h": 220.6
  },
  "luminance": 0.15038
}

Semantic roles & 50–950 ramp

primary

#28758B

secondary

#B66E59

accent

#6A49DF

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #28758B

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

Preview Lab → · Contrast checker → · Palette generator →