#538FBB#538FBB

#538FBB is a light, moderate cyan. Relative luminance 0.251; OKLCH L 62.7% C 0.091 H 242.0°. Best body text is #000000 at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#538FBB
RGB	rgb(83, 143, 187)
HSL	hsl(205, 43%, 53%)
HSV	hsv(205, 56%, 73%)
CMYK	cmyk(55.6%, 23.5%, 0%, 26.7%)
CIE-LAB	lab(57.14, -6.63, -28.87)
CIE-LCH	lch(57.14, 29.62, 257.07°)
OKLab	oklab(62.75% -0.043 -0.0808)
OKLCH	oklch(62.75% 0.091 242)
XYZ	xyz(22.3561, 25.0699, 50.6649)
Luminance	0.2507 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538FBB #BB7F53

analogous

#53BBB3 #538FBB #535BBB

triadic

#538FBB #BB538F #8FBB53

tetradic

#538FBB #B353BB #BB7F53 #5BBB53

square

#538FBB #B353BB #BB7F53 #5BBB53

split-complementary

#538FBB #BB535B #BBB353

monochromatic

#2A4F6A #3B6F96 #538FBB #7FACCC #ABC8DE

Accessibility & contrast

On white

3.49

#538FBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.01

#538FBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538FBB

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538FBB	#FFFFFF	#000000	##000000
##538FBB	1.00	3.49	6.01	6.01
#FFFFFF	3.49	1.00	21.00	21.00
#000000	6.01	21.00	1.00	1.00
##000000	6.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C8FBD

Deuteranopia (green-blind)

#6E84BA

Tritanopia (blue-blind)

#009A9E

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #538fbb;
/* rgb */ color: rgb(83, 143, 187);
/* oklch */ color: oklch(62.7% 0.091 242.0);

Tailwind

colors: {
  custom: {
    50: '#8bafcf',
    500: '#538fbb',
    950: '#000000',
  },
}

SCSS

$custom: #538fbb;
$custom-light: #8bafcf;
$custom-dark: #000000;

JSON

{
  "hex": "#538fbb",
  "rgb": {
    "r": 83,
    "g": 143,
    "b": 187
  },
  "hsl": {
    "h": 205.385,
    "s": 43.333,
    "l": 52.941
  },
  "oklch": {
    "l": 0.62747,
    "c": 0.09148,
    "h": 242
  },
  "luminance": 0.25072
}

Semantic roles & 50–950 ramp

primary

#538FBB

secondary

#CBB19E

accent

#8A55D3

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #538FBB

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

Preview Lab → · Contrast checker → · Palette generator →