#538BB1#538BB1

#538BB1 is a mid, moderate cyan. Relative luminance 0.235; OKLCH L 61.4% C 0.083 H 239.7°. Best body text is #000000 at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#538BB1
RGB	rgb(83, 139, 177)
HSL	hsl(204, 38%, 51%)
HSV	hsv(204, 53%, 69%)
CMYK	cmyk(53.1%, 21.5%, 0%, 30.6%)
CIE-LAB	lab(55.56, -7.47, -25.62)
CIE-LCH	lch(55.56, 26.69, 253.76°)
OKLab	oklab(61.36% -0.0417 -0.0715)
OKLCH	oklch(61.36% 0.083 239.7)
XYZ	xyz(20.7328, 23.4769, 45.0254)
Luminance	0.2348 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538BB1 #B17953

analogous

#53B1A8 #538BB1 #535CB1

triadic

#538BB1 #B1538B #8BB153

tetradic

#538BB1 #A853B1 #B17953 #5CB153

square

#538BB1 #A853B1 #B17953 #5CB153

split-complementary

#538BB1 #B1535C #B1A853

monochromatic

#2B4A5F #3E6B89 #538BB1 #7DA7C4 #A7C4D7

Accessibility & contrast

On white

3.69

#538BB1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.70

#538BB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538BB1

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538BB1	#FFFFFF	#000000	##000000
##538BB1	1.00	3.69	5.70	5.70
#FFFFFF	3.69	1.00	21.00	21.00
#000000	5.70	21.00	1.00	1.00
##000000	5.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A8BB3

Deuteranopia (green-blind)

#6D81B0

Tritanopia (blue-blind)

#1A9598

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #538bb1;
/* rgb */ color: rgb(83, 139, 177);
/* oklch */ color: oklch(61.4% 0.083 239.7);

Tailwind

colors: {
  custom: {
    50: '#8aacc8',
    500: '#538bb1',
    950: '#000000',
  },
}

SCSS

$custom: #538bb1;
$custom-light: #8aacc8;
$custom-dark: #000000;

JSON

{
  "hex": "#538bb1",
  "rgb": {
    "r": 83,
    "g": 139,
    "b": 177
  },
  "hsl": {
    "h": 204.255,
    "s": 37.6,
    "l": 50.98
  },
  "oklch": {
    "l": 0.61359,
    "c": 0.08277,
    "h": 239.7
  },
  "luminance": 0.23479
}

Semantic roles & 50–950 ramp

primary

#538BB1

secondary

#C5AC9B

accent

#895ACE

background

#F8FAFC

surface

#F0F4F8

border

#CBCED1

text

#0C1013

muted

#7D7F82

Preview Lab

Preview with #538BB1

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

Preview Lab → · Contrast checker → · Palette generator →