#28738F#28738F

#28738F is a mid, moderate cyan. Relative luminance 0.147; OKLCH L 52.2% C 0.084 H 226.8°. Best body text is #FFFFFF at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#28738F
RGB	rgb(40, 115, 143)
HSL	hsl(196, 56%, 36%)
HSV	hsv(196, 72%, 56%)
CMYK	cmyk(72%, 19.6%, 0%, 43.9%)
CIE-LAB	lab(45.21, -13.28, -21.93)
CIE-LCH	lch(45.21, 25.64, 238.79°)
OKLab	oklab(52.21% -0.0576 -0.0614)
OKLCH	oklch(52.21% 0.084 226.8)
XYZ	xyz(11.9617, 14.6944, 28.1872)
Luminance	0.1470 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28738F #8F4428

analogous

#288F77 #28738F #283F8F

triadic

#28738F #8F2873 #738F28

tetradic

#28738F #77288F #8F4428 #3F8F28

square

#28738F #77288F #8F4428 #3F8F28

split-complementary

#28738F #8F283F #8F7728

monochromatic

#0D262F #1B4D5F #28738F #3599BF #5FB3D2

Accessibility & contrast

On white

5.33

#28738F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#28738F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #28738F

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28738F	#FFFFFF	#000000	##FFFFFF
##28738F	1.00	5.33	3.94	5.33
#FFFFFF	5.33	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#647190

Deuteranopia (green-blind)

#56678F

Tritanopia (blue-blind)

#007B7C

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #28738f;
/* rgb */ color: rgb(40, 115, 143);
/* oklch */ color: oklch(52.2% 0.084 226.8);

Tailwind

colors: {
  custom: {
    50: '#709bb0',
    500: '#28738f',
    950: '#000000',
  },
}

SCSS

$custom: #28738f;
$custom-light: #709bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#28738f",
  "rgb": {
    "r": 40,
    "g": 115,
    "b": 143
  },
  "hsl": {
    "h": 196.311,
    "s": 56.284,
    "l": 35.882
  },
  "oklch": {
    "l": 0.52214,
    "c": 0.08421,
    "h": 226.8
  },
  "luminance": 0.14696
}

Semantic roles & 50–950 ramp

primary

#28738F

secondary

#B8745B

accent

#7148E0

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #28738F

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

Preview Lab → · Contrast checker → · Palette generator →