#538EB3#538EB3

#538EB3 is a light, moderate cyan. Relative luminance 0.244; OKLCH L 62.1% C 0.083 H 237.7°. Best body text is #000000 at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#538EB3
RGB	rgb(83, 142, 179)
HSL	hsl(203, 39%, 51%)
HSV	hsv(203, 54%, 70%)
CMYK	cmyk(53.6%, 20.7%, 0%, 29.8%)
CIE-LAB	lab(56.52, -8.55, -25.28)
CIE-LCH	lch(56.52, 26.68, 251.32°)
OKLab	oklab(62.15% -0.0446 -0.0705)
OKLCH	oklch(62.15% 0.083 237.7)
XYZ	xyz(21.3740, 24.4379, 46.2297)
Luminance	0.2444 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538EB3 #B37853

analogous

#53B3A8 #538EB3 #535EB3

triadic

#538EB3 #B3538E #8EB353

tetradic

#538EB3 #A853B3 #B37853 #5EB353

square

#538EB3 #A853B3 #B37853 #5EB353

split-complementary

#538EB3 #B3535E #B3A853

monochromatic

#2B4C61 #3E6D8B #538EB3 #7DAAC6 #A8C6D9

Accessibility & contrast

On white

3.57

#538EB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.89

#538EB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538EB3

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538EB3	#FFFFFF	#000000	##000000
##538EB3	1.00	3.57	5.89	5.89
#FFFFFF	3.57	1.00	21.00	21.00
#000000	5.89	21.00	1.00	1.00
##000000	5.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D8DB5

Deuteranopia (green-blind)

#7083B2

Tritanopia (blue-blind)

#15979A

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #538eb3;
/* rgb */ color: rgb(83, 142, 179);
/* oklch */ color: oklch(62.1% 0.083 237.7);

Tailwind

colors: {
  custom: {
    50: '#8aafc9',
    500: '#538eb3',
    950: '#000000',
  },
}

SCSS

$custom: #538eb3;
$custom-light: #8aafc9;
$custom-dark: #000000;

JSON

{
  "hex": "#538eb3",
  "rgb": {
    "r": 83,
    "g": 142,
    "b": 179
  },
  "hsl": {
    "h": 203.125,
    "s": 38.71,
    "l": 51.373
  },
  "oklch": {
    "l": 0.62148,
    "c": 0.0834,
    "h": 237.7
  },
  "luminance": 0.2444
}

Semantic roles & 50–950 ramp

primary

#538EB3

secondary

#C6AC9C

accent

#8659CF

background

#F8FAFC

surface

#F0F4F8

border

#CBCED1

text

#0C1013

muted

#7D7F82

Preview Lab

Preview with #538EB3

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

Preview Lab → · Contrast checker → · Palette generator →