#538FB9#538FB9

#538FB9 is a light, moderate cyan. Relative luminance 0.250; OKLCH L 62.7% C 0.089 H 240.7°. Best body text is #000000 at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#538FB9
RGB	rgb(83, 143, 185)
HSL	hsl(205, 42%, 53%)
HSV	hsv(205, 55%, 73%)
CMYK	cmyk(55.1%, 22.7%, 0%, 27.5%)
CIE-LAB	lab(57.06, -7.26, -27.86)
CIE-LCH	lch(57.06, 28.79, 255.41°)
OKLab	oklab(62.65% -0.0436 -0.0779)
OKLCH	oklch(62.65% 0.089 240.7)
XYZ	xyz(22.1435, 24.9848, 49.5452)
Luminance	0.2499 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538FB9 #B97D53

analogous

#53B9B0 #538FB9 #535CB9

triadic

#538FB9 #B9538F #8FB953

tetradic

#538FB9 #B053B9 #B97D53 #5CB953

square

#538FB9 #B053B9 #B97D53 #5CB953

split-complementary

#538FB9 #B9535C #B9B053

monochromatic

#2A4E67 #3C6F93 #538FB9 #7EABCB #AAC8DC

Accessibility & contrast

On white

3.50

#538FB9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.00

#538FB9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538FB9

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538FB9	#FFFFFF	#000000	##000000
##538FB9	1.00	3.50	6.00	6.00
#FFFFFF	3.50	1.00	21.00	21.00
#000000	6.00	21.00	1.00	1.00
##000000	6.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C8FBB

Deuteranopia (green-blind)

#6F84B8

Tritanopia (blue-blind)

#03999D

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #538fb9;
/* rgb */ color: rgb(83, 143, 185);
/* oklch */ color: oklch(62.7% 0.089 240.7);

Tailwind

colors: {
  custom: {
    50: '#8bafce',
    500: '#538fb9',
    950: '#000000',
  },
}

SCSS

$custom: #538fb9;
$custom-light: #8bafce;
$custom-dark: #000000;

JSON

{
  "hex": "#538fb9",
  "rgb": {
    "r": 83,
    "g": 143,
    "b": 185
  },
  "hsl": {
    "h": 204.706,
    "s": 42.149,
    "l": 52.549
  },
  "oklch": {
    "l": 0.62654,
    "c": 0.08927,
    "h": 240.7
  },
  "luminance": 0.24987
}

Semantic roles & 50–950 ramp

primary

#538FB9

secondary

#CAB09E

accent

#8956D2

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C1013

muted

#7D7F82

Preview Lab

Preview with #538FB9

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

Preview Lab → · Contrast checker → · Palette generator →