#538BBB#538BBB

#538BBB is a mid, moderate cyan. Relative luminance 0.239; OKLCH L 61.8% C 0.094 H 246.0°. Best body text is #000000 at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#538BBB
RGB	rgb(83, 139, 187)
HSL	hsl(208, 43%, 53%)
HSV	hsv(208, 56%, 73%)
CMYK	cmyk(55.6%, 25.7%, 0%, 26.7%)
CIE-LAB	lab(55.98, -4.34, -30.68)
CIE-LCH	lch(55.98, 30.99, 261.94°)
OKLab	oklab(61.83% -0.0384 -0.086)
OKLCH	oklch(61.83% 0.094 246)
XYZ	xyz(21.7663, 23.8902, 50.4683)
Luminance	0.2389 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538BBB #BB8353

analogous

#53BBB7 #538BBB #5357BB

triadic

#538BBB #BB538B #8BBB53

tetradic

#538BBB #B753BB #BB8353 #57BB53

square

#538BBB #B753BB #BB8353 #57BB53

split-complementary

#538BBB #BB5357 #BBB753

monochromatic

#2A4C6A #3B6C96 #538BBB #7FA9CC #ABC6DE

Accessibility & contrast

On white

3.63

#538BBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.78

#538BBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538BBB

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538BBB	#FFFFFF	#000000	##000000
##538BBB	1.00	3.63	5.78	5.78
#FFFFFF	3.63	1.00	21.00	21.00
#000000	5.78	21.00	1.00	1.00
##000000	5.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#778CBD

Deuteranopia (green-blind)

#6982BA

Tritanopia (blue-blind)

#00969B

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #538bbb;
/* rgb */ color: rgb(83, 139, 187);
/* oklch */ color: oklch(61.8% 0.094 246.0);

Tailwind

colors: {
  custom: {
    50: '#8baccf',
    500: '#538bbb',
    950: '#000000',
  },
}

SCSS

$custom: #538bbb;
$custom-light: #8baccf;
$custom-dark: #000000;

JSON

{
  "hex": "#538bbb",
  "rgb": {
    "r": 83,
    "g": 139,
    "b": 187
  },
  "hsl": {
    "h": 207.692,
    "s": 43.333,
    "l": 52.941
  },
  "oklch": {
    "l": 0.61827,
    "c": 0.09416,
    "h": 246
  },
  "luminance": 0.23892
}

Semantic roles & 50–950 ramp

primary

#538BBB

secondary

#CBB39E

accent

#8F55D3

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #538BBB

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

Preview Lab → · Contrast checker → · Palette generator →