#538EB5#538EB5

#538EB5 is a light, moderate cyan. Relative luminance 0.245; OKLCH L 62.2% C 0.085 H 239.1°. Best body text is #000000 at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#538EB5
RGB	rgb(83, 142, 181)
HSL	hsl(204, 40%, 52%)
HSV	hsv(204, 54%, 71%)
CMYK	cmyk(54.1%, 21.5%, 0%, 29%)
CIE-LAB	lab(56.60, -7.93, -26.29)
CIE-LCH	lch(56.60, 27.46, 253.22°)
OKLab	oklab(62.24% -0.0439 -0.0734)
OKLCH	oklch(62.24% 0.085 239.1)
XYZ	xyz(21.5777, 24.5194, 47.3027)
Luminance	0.2452 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538EB5 #B57A53

analogous

#53B5AB #538EB5 #535DB5

triadic

#538EB5 #B5538E #8EB553

tetradic

#538EB5 #AB53B5 #B57A53 #5DB553

square

#538EB5 #AB53B5 #B57A53 #5DB553

split-complementary

#538EB5 #B5535D #B5AB53

monochromatic

#2B4D63 #3D6E8E #538EB5 #7EAAC7 #A9C6DA

Accessibility & contrast

On white

3.56

#538EB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.90

#538EB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538EB5

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538EB5	#FFFFFF	#000000	##000000
##538EB5	1.00	3.56	5.90	5.90
#FFFFFF	3.56	1.00	21.00	21.00
#000000	5.90	21.00	1.00	1.00
##000000	5.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C8EB7

Deuteranopia (green-blind)

#6F83B4

Tritanopia (blue-blind)

#10989B

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #538eb5;
/* rgb */ color: rgb(83, 142, 181);
/* oklch */ color: oklch(62.2% 0.085 239.1);

Tailwind

colors: {
  custom: {
    50: '#8aafcb',
    500: '#538eb5',
    950: '#000000',
  },
}

SCSS

$custom: #538eb5;
$custom-light: #8aafcb;
$custom-dark: #000000;

JSON

{
  "hex": "#538eb5",
  "rgb": {
    "r": 83,
    "g": 142,
    "b": 181
  },
  "hsl": {
    "h": 203.878,
    "s": 39.837,
    "l": 51.765
  },
  "oklch": {
    "l": 0.62239,
    "c": 0.08549,
    "h": 239.1
  },
  "luminance": 0.24521
}

Semantic roles & 50–950 ramp

primary

#538EB5

secondary

#C7AE9C

accent

#8858D0

background

#F8FAFC

surface

#F0F4F8

border

#CBCED1

text

#0C1013

muted

#7D7F82

Preview Lab

Preview with #538EB5

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

Preview Lab → · Contrast checker → · Palette generator →