#538DB3#538DB3

#538DB3 is a mid, moderate cyan. Relative luminance 0.241; OKLCH L 61.9% C 0.084 H 238.8°. Best body text is #000000 at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#538DB3
RGB	rgb(83, 141, 179)
HSL	hsl(204, 39%, 51%)
HSV	hsv(204, 54%, 70%)
CMYK	cmyk(53.6%, 21.2%, 0%, 29.8%)
CIE-LAB	lab(56.23, -7.98, -25.73)
CIE-LCH	lch(56.23, 26.94, 252.77°)
OKLab	oklab(61.92% -0.0434 -0.0718)
OKLCH	oklch(61.92% 0.084 238.8)
XYZ	xyz(21.2259, 24.1417, 46.1803)
Luminance	0.2414 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538DB3 #B37953

analogous

#53B3A9 #538DB3 #535DB3

triadic

#538DB3 #B3538D #8DB353

tetradic

#538DB3 #A953B3 #B37953 #5DB353

square

#538DB3 #A953B3 #B37953 #5DB353

split-complementary

#538DB3 #B3535D #B3A953

monochromatic

#2B4B61 #3E6C8B #538DB3 #7DA9C6 #A8C5D9

Accessibility & contrast

On white

3.60

#538DB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.83

#538DB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538DB3

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538DB3	#FFFFFF	#000000	##000000
##538DB3	1.00	3.60	5.83	5.83
#FFFFFF	3.60	1.00	21.00	21.00
#000000	5.83	21.00	1.00	1.00
##000000	5.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C8CB5

Deuteranopia (green-blind)

#6F82B2

Tritanopia (blue-blind)

#15979A

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #538db3;
/* rgb */ color: rgb(83, 141, 179);
/* oklch */ color: oklch(61.9% 0.084 238.8);

Tailwind

colors: {
  custom: {
    50: '#8aaeca',
    500: '#538db3',
    950: '#000000',
  },
}

SCSS

$custom: #538db3;
$custom-light: #8aaeca;
$custom-dark: #000000;

JSON

{
  "hex": "#538db3",
  "rgb": {
    "r": 83,
    "g": 141,
    "b": 179
  },
  "hsl": {
    "h": 203.75,
    "s": 38.71,
    "l": 51.373
  },
  "oklch": {
    "l": 0.61915,
    "c": 0.08389,
    "h": 238.8
  },
  "luminance": 0.24143
}

Semantic roles & 50–950 ramp

primary

#538DB3

secondary

#C6AC9C

accent

#8859CF

background

#F8FAFC

surface

#F0F4F8

border

#CBCED1

text

#0C1013

muted

#7D7F82

Preview Lab

Preview with #538DB3

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

Preview Lab → · Contrast checker → · Palette generator →