#537CCE#537CCE

#537CCE is a mid, vivid blue. Relative luminance 0.207; OKLCH L 59.5% C 0.134 H 262.9°. Best body text is #000000 at 5.14:1 contrast (WCAG AA passes).

Color values

HEX	#537CCE
RGB	rgb(83, 124, 206)
HSL	hsl(220, 56%, 57%)
HSV	hsv(220, 60%, 81%)
CMYK	cmyk(59.7%, 39.8%, 0%, 19.2%)
CIE-LAB	lab(52.63, 10.77, -46.75)
CIE-LCH	lch(52.63, 47.97, 282.97°)
OKLab	oklab(59.51% -0.0165 -0.1328)
OKLCH	oklch(59.51% 0.134 262.9)
XYZ	xyz(21.9117, 20.7087, 61.2230)
Luminance	0.2071 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537CCE #CEA553

analogous

#53BACE #537CCE #6853CE

triadic

#537CCE #CE537C #7CCE53

tetradic

#537CCE #CE53BA #CEA553 #53CE68

square

#537CCE #CE53BA #CEA553 #53CE68

split-complementary

#537CCE #CE6853 #BACE53

monochromatic

#254482 #335DB1 #537CCE #83A0DC #B2C5E9

Accessibility & contrast

On white

4.08

#537CCE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.14

#537CCE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537CCE

5.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537CCE	#FFFFFF	#000000	##000000
##537CCE	1.00	4.08	5.14	5.14
#FFFFFF	4.08	1.00	21.00	21.00
#000000	5.14	21.00	1.00	1.00
##000000	5.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5984D1

Deuteranopia (green-blind)

#4878CC

Tritanopia (blue-blind)

#008E9B

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #537cce;
/* rgb */ color: rgb(83, 124, 206);
/* oklch */ color: oklch(59.5% 0.134 262.9);

Tailwind

colors: {
  custom: {
    50: '#8da1dd',
    500: '#537cce',
    950: '#000000',
  },
}

SCSS

$custom: #537cce;
$custom-light: #8da1dd;
$custom-dark: #000000;

JSON

{
  "hex": "#537cce",
  "rgb": {
    "r": 83,
    "g": 124,
    "b": 206
  },
  "hsl": {
    "h": 220,
    "s": 55.656,
    "l": 56.667
  },
  "oklch": {
    "l": 0.59511,
    "c": 0.13386,
    "h": 262.9
  },
  "luminance": 0.20711
}

Semantic roles & 50–950 ramp

primary

#537CCE

secondary

#D8C7A5

accent

#AD49DF

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #537CCE

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

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