#538DB5#538DB5

#538DB5 is a light, moderate cyan. Relative luminance 0.242; OKLCH L 62.0% C 0.086 H 240.2°. Best body text is #000000 at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#538DB5
RGB	rgb(83, 141, 181)
HSL	hsl(204, 40%, 52%)
HSV	hsv(204, 54%, 71%)
CMYK	cmyk(54.1%, 22.1%, 0%, 29%)
CIE-LAB	lab(56.31, -7.36, -26.75)
CIE-LCH	lch(56.31, 27.74, 254.61°)
OKLab	oklab(62.01% -0.0427 -0.0747)
OKLCH	oklch(62.01% 0.086 240.2)
XYZ	xyz(21.4296, 24.2232, 47.2534)
Luminance	0.2422 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538DB5 #B57B53

analogous

#53B5AC #538DB5 #535CB5

triadic

#538DB5 #B5538D #8DB553

tetradic

#538DB5 #AC53B5 #B57B53 #5CB553

square

#538DB5 #AC53B5 #B57B53 #5CB553

split-complementary

#538DB5 #B5535C #B5AC53

monochromatic

#2B4C63 #3D6D8E #538DB5 #7EA9C7 #A9C6DA

Accessibility & contrast

On white

3.59

#538DB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.85

#538DB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538DB5

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538DB5	#FFFFFF	#000000	##000000
##538DB5	1.00	3.59	5.85	5.85
#FFFFFF	3.59	1.00	21.00	21.00
#000000	5.85	21.00	1.00	1.00
##000000	5.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B8DB7

Deuteranopia (green-blind)

#6E83B4

Tritanopia (blue-blind)

#11979A

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #538db5;
/* rgb */ color: rgb(83, 141, 181);
/* oklch */ color: oklch(62.0% 0.086 240.2);

Tailwind

colors: {
  custom: {
    50: '#8aaecb',
    500: '#538db5',
    950: '#000000',
  },
}

SCSS

$custom: #538db5;
$custom-light: #8aaecb;
$custom-dark: #000000;

JSON

{
  "hex": "#538db5",
  "rgb": {
    "r": 83,
    "g": 141,
    "b": 181
  },
  "hsl": {
    "h": 204.49,
    "s": 39.837,
    "l": 51.765
  },
  "oklch": {
    "l": 0.62006,
    "c": 0.08603,
    "h": 240.2
  },
  "luminance": 0.24225
}

Semantic roles & 50–950 ramp

primary

#538DB5

secondary

#C7AE9C

accent

#8958D0

background

#F8FAFC

surface

#F0F4F8

border

#CBCED1

text

#0C1013

muted

#7D7F82

Preview Lab

Preview with #538DB5

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

Preview Lab → · Contrast checker → · Palette generator →