#537DCE#537DCE

#537DCE is a mid, vivid blue. Relative luminance 0.210; OKLCH L 59.7% C 0.133 H 262.4°. Best body text is #000000 at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#537DCE
RGB	rgb(83, 125, 206)
HSL	hsl(220, 56%, 57%)
HSV	hsv(220, 60%, 81%)
CMYK	cmyk(59.7%, 39.3%, 0%, 19.2%)
CIE-LAB	lab(52.91, 10.16, -46.31)
CIE-LCH	lch(52.91, 47.41, 282.37°)
OKLab	oklab(59.72% -0.0176 -0.1315)
OKLCH	oklch(59.72% 0.133 262.4)
XYZ	xyz(22.0376, 20.9606, 61.2650)
Luminance	0.2096 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537DCE #CEA453

analogous

#53BBCE #537DCE #6753CE

triadic

#537DCE #CE537D #7DCE53

tetradic

#537DCE #CE53BB #CEA453 #53CE67

square

#537DCE #CE53BB #CEA453 #53CE67

split-complementary

#537DCE #CE6753 #BBCE53

monochromatic

#254582 #335EB1 #537DCE #83A1DC #B2C5E9

Accessibility & contrast

On white

4.04

#537DCE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.19

#537DCE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537DCE

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537DCE	#FFFFFF	#000000	##000000
##537DCE	1.00	4.04	5.19	5.19
#FFFFFF	4.04	1.00	21.00	21.00
#000000	5.19	21.00	1.00	1.00
##000000	5.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A84D1

Deuteranopia (green-blind)

#4A79CC

Tritanopia (blue-blind)

#008F9B

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #537dce;
/* rgb */ color: rgb(83, 125, 206);
/* oklch */ color: oklch(59.7% 0.133 262.4);

Tailwind

colors: {
  custom: {
    50: '#8da2dd',
    500: '#537dce',
    950: '#000000',
  },
}

SCSS

$custom: #537dce;
$custom-light: #8da2dd;
$custom-dark: #000000;

JSON

{
  "hex": "#537dce",
  "rgb": {
    "r": 83,
    "g": 125,
    "b": 206
  },
  "hsl": {
    "h": 219.512,
    "s": 55.656,
    "l": 56.667
  },
  "oklch": {
    "l": 0.59725,
    "c": 0.13271,
    "h": 262.4
  },
  "luminance": 0.20962
}

Semantic roles & 50–950 ramp

primary

#537DCE

secondary

#D8C6A5

accent

#AC49DF

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #537DCE

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

Preview Lab → · Contrast checker → · Palette generator →