#537FCE#537FCE

#537FCE is a mid, vivid blue. Relative luminance 0.215; OKLCH L 60.2% C 0.130 H 261.3°. Best body text is #000000 at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#537FCE
RGB	rgb(83, 127, 206)
HSL	hsl(219, 56%, 57%)
HSV	hsv(219, 60%, 81%)
CMYK	cmyk(59.7%, 38.3%, 0%, 19.2%)
CIE-LAB	lab(53.46, 8.95, -45.43)
CIE-LCH	lch(53.46, 46.30, 281.14°)
OKLab	oklab(60.16% -0.0197 -0.1289)
OKLCH	oklch(60.16% 0.13 261.3)
XYZ	xyz(22.2934, 21.4720, 61.3503)
Luminance	0.2147 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537FCE #CEA253

analogous

#53BCCE #537FCE #6553CE

triadic

#537FCE #CE537F #7FCE53

tetradic

#537FCE #CE53BC #CEA253 #53CE65

square

#537FCE #CE53BC #CEA253 #53CE65

split-complementary

#537FCE #CE6553 #BCCE53

monochromatic

#254682 #3360B1 #537FCE #83A2DC #B2C6E9

Accessibility & contrast

On white

3.97

#537FCE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.29

#537FCE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537FCE

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537FCE	#FFFFFF	#000000	##000000
##537FCE	1.00	3.97	5.29	5.29
#FFFFFF	3.97	1.00	21.00	21.00
#000000	5.29	21.00	1.00	1.00
##000000	5.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D86D1

Deuteranopia (green-blind)

#4D7ACC

Tritanopia (blue-blind)

#00919C

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #537fce;
/* rgb */ color: rgb(83, 127, 206);
/* oklch */ color: oklch(60.2% 0.130 261.3);

Tailwind

colors: {
  custom: {
    50: '#8da3dd',
    500: '#537fce',
    950: '#000000',
  },
}

SCSS

$custom: #537fce;
$custom-light: #8da3dd;
$custom-dark: #000000;

JSON

{
  "hex": "#537fce",
  "rgb": {
    "r": 83,
    "g": 127,
    "b": 206
  },
  "hsl": {
    "h": 218.537,
    "s": 55.656,
    "l": 56.667
  },
  "oklch": {
    "l": 0.60156,
    "c": 0.13044,
    "h": 261.3
  },
  "luminance": 0.21474
}

Semantic roles & 50–950 ramp

primary

#537FCE

secondary

#D8C6A5

accent

#A949DF

background

#F9FAFD

surface

#F1F3FB

border

#CBCDD4

text

#0D0F15

muted

#7E7F83

Preview Lab

Preview with #537FCE

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

Preview Lab → · Contrast checker → · Palette generator →