#538FB3#538FB3

#538FB3 is a light, moderate cyan. Relative luminance 0.247; OKLCH L 62.4% C 0.083 H 236.5°. Best body text is #000000 at 5.95:1 contrast (WCAG AA passes).

Color values

HEX	#538FB3
RGB	rgb(83, 143, 179)
HSL	hsl(203, 39%, 51%)
HSV	hsv(203, 54%, 70%)
CMYK	cmyk(53.6%, 20.1%, 0%, 29.8%)
CIE-LAB	lab(56.82, -9.11, -24.83)
CIE-LCH	lch(56.82, 26.44, 249.85°)
OKLab	oklab(62.38% -0.0458 -0.0692)
OKLCH	oklch(62.38% 0.083 236.5)
XYZ	xyz(21.5234, 24.7368, 46.2795)
Luminance	0.2474 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538FB3 #B37753

analogous

#53B3A7 #538FB3 #535FB3

triadic

#538FB3 #B3538F #8FB353

tetradic

#538FB3 #A753B3 #B37753 #5FB353

square

#538FB3 #A753B3 #B37753 #5FB353

split-complementary

#538FB3 #B3535F #B3A753

monochromatic

#2B4D61 #3E6E8B #538FB3 #7DABC6 #A8C6D9

Accessibility & contrast

On white

3.53

#538FB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.95

#538FB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538FB3

5.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538FB3	#FFFFFF	#000000	##000000
##538FB3	1.00	3.53	5.95	5.95
#FFFFFF	3.53	1.00	21.00	21.00
#000000	5.95	21.00	1.00	1.00
##000000	5.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E8EB5

Deuteranopia (green-blind)

#7184B2

Tritanopia (blue-blind)

#14989B

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #538fb3;
/* rgb */ color: rgb(83, 143, 179);
/* oklch */ color: oklch(62.4% 0.083 236.5);

Tailwind

colors: {
  custom: {
    50: '#8aafc9',
    500: '#538fb3',
    950: '#000000',
  },
}

SCSS

$custom: #538fb3;
$custom-light: #8aafc9;
$custom-dark: #000000;

JSON

{
  "hex": "#538fb3",
  "rgb": {
    "r": 83,
    "g": 143,
    "b": 179
  },
  "hsl": {
    "h": 202.5,
    "s": 38.71,
    "l": 51.373
  },
  "oklch": {
    "l": 0.62382,
    "c": 0.08294,
    "h": 236.5
  },
  "luminance": 0.24739
}

Semantic roles & 50–950 ramp

primary

#538FB3

secondary

#C6AC9C

accent

#8559CF

background

#F8FAFC

surface

#F0F4F8

border

#CBCED1

text

#0C1013

muted

#7D7F82

Preview Lab

Preview with #538FB3

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

Preview Lab → · Contrast checker → · Palette generator →