#537FCF#537FCF

#537FCF is a mid, vivid blue. Relative luminance 0.215; OKLCH L 60.2% C 0.132 H 261.5°. Best body text is #000000 at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#537FCF
RGB	rgb(83, 127, 207)
HSL	hsl(219, 56%, 57%)
HSV	hsv(219, 60%, 81%)
CMYK	cmyk(59.9%, 38.6%, 0%, 18.8%)
CIE-LAB	lab(53.51, 9.28, -45.91)
CIE-LCH	lch(53.51, 46.84, 281.43°)
OKLab	oklab(60.21% -0.0195 -0.1303)
OKLCH	oklch(60.21% 0.132 261.5)
XYZ	xyz(22.4152, 21.5208, 61.9921)
Luminance	0.2152 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537FCF #CFA353

analogous

#53BDCF #537FCF #6553CF

triadic

#537FCF #CF537F #7FCF53

tetradic

#537FCF #CF53BD #CFA353 #53CF65

square

#537FCF #CF53BD #CFA353 #53CF65

split-complementary

#537FCF #CF6553 #BDCF53

monochromatic

#254683 #3260B3 #537FCF #83A3DC #B3C6EA

Accessibility & contrast

On white

3.96

#537FCF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.30

#537FCF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537FCF

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537FCF	#FFFFFF	#000000	##000000
##537FCF	1.00	3.96	5.30	5.30
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.30	21.00	1.00	1.00
##000000	5.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D86D2

Deuteranopia (green-blind)

#4C7BCD

Tritanopia (blue-blind)

#00919D

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #537fcf;
/* rgb */ color: rgb(83, 127, 207);
/* oklch */ color: oklch(60.2% 0.132 261.5);

Tailwind

colors: {
  custom: {
    50: '#8da3de',
    500: '#537fcf',
    950: '#000000',
  },
}

SCSS

$custom: #537fcf;
$custom-light: #8da3de;
$custom-dark: #000000;

JSON

{
  "hex": "#537fcf",
  "rgb": {
    "r": 83,
    "g": 127,
    "b": 207
  },
  "hsl": {
    "h": 218.71,
    "s": 56.364,
    "l": 56.863
  },
  "oklch": {
    "l": 0.60214,
    "c": 0.1318,
    "h": 261.5
  },
  "luminance": 0.21523
}

Semantic roles & 50–950 ramp

primary

#537FCF

secondary

#D8C6A6

accent

#AA48E0

background

#F9FAFD

surface

#F1F3FB

border

#CBCDD4

text

#0D0F15

muted

#7E7F83

Preview Lab

Preview with #537FCF

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

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