#539CCB#539CCB

#539CCB is a light, moderate cyan. Relative luminance 0.299; OKLCH L 66.5% C 0.101 H 239.0°. Best body text is #000000 at 6.99:1 contrast (WCAG AA passes).

Color values

HEX	#539CCB
RGB	rgb(83, 156, 203)
HSL	hsl(204, 54%, 56%)
HSV	hsv(204, 59%, 80%)
CMYK	cmyk(59.1%, 23.2%, 0%, 20.4%)
CIE-LAB	lab(61.59, -8.90, -30.99)
CIE-LCH	lch(61.59, 32.25, 253.97°)
OKLab	oklab(66.49% -0.0521 -0.0868)
OKLCH	oklch(66.49% 0.101 239)
XYZ	xyz(26.2312, 29.9253, 60.8821)
Luminance	0.2993 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#539CCB #CB8253

analogous

#53CBBE #539CCB #5360CB

triadic

#539CCB #CB539C #9CCB53

tetradic

#539CCB #BE53CB #CB8253 #60CB53

square

#539CCB #BE53CB #CB8253 #60CB53

split-complementary

#539CCB #CB5360 #CBBE53

monochromatic

#265B7E #347DAD #539CCB #82B7D9 #B1D2E7

Accessibility & contrast

On white

3.01

#539CCB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.99

#539CCB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #539CCB

6.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##539CCB	#FFFFFF	#000000	##000000
##539CCB	1.00	3.01	6.99	6.99
#FFFFFF	3.01	1.00	21.00	21.00
#000000	6.99	21.00	1.00	1.00
##000000	6.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#879CCD

Deuteranopia (green-blind)

#768FCA

Tritanopia (blue-blind)

#00A8AC

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #539ccb;
/* rgb */ color: rgb(83, 156, 203);
/* oklch */ color: oklch(66.5% 0.101 239.0);

Tailwind

colors: {
  custom: {
    50: '#8db9db',
    500: '#539ccb',
    950: '#000000',
  },
}

SCSS

$custom: #539ccb;
$custom-light: #8db9db;
$custom-dark: #000000;

JSON

{
  "hex": "#539ccb",
  "rgb": {
    "r": 83,
    "g": 156,
    "b": 203
  },
  "hsl": {
    "h": 203.5,
    "s": 53.571,
    "l": 56.078
  },
  "oklch": {
    "l": 0.66485,
    "c": 0.10124,
    "h": 239
  },
  "luminance": 0.29928
}

Semantic roles & 50–950 ramp

primary

#539CCB

secondary

#D6B8A4

accent

#844BDD

background

#F9FBFD

surface

#F1F6FB

border

#CBD0D4

text

#0D1115

muted

#7E8083

Preview Lab

Preview with #539CCB

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

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