#537FD3#537FD3

#537FD3 is a mid, vivid blue. Relative luminance 0.217; OKLCH L 60.4% C 0.137 H 262.2°. Best body text is #000000 at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#537FD3
RGB	rgb(83, 127, 211)
HSL	hsl(219, 59%, 58%)
HSV	hsv(219, 61%, 83%)
CMYK	cmyk(60.7%, 39.8%, 0%, 17.3%)
CIE-LAB	lab(53.73, 10.62, -47.84)
CIE-LCH	lch(53.73, 49.00, 282.52°)
OKLab	oklab(60.45% -0.0186 -0.136)
OKLCH	oklch(60.45% 0.137 262.2)
XYZ	xyz(22.9104, 21.7189, 64.6002)
Luminance	0.2172 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537FD3 #D3A753

analogous

#53BFD3 #537FD3 #6753D3

triadic

#537FD3 #D3537F #7FD353

tetradic

#537FD3 #D353BF #D3A753 #53D367

square

#537FD3 #D353BF #D3A753 #53D367

split-complementary

#537FD3 #D36753 #BFD353

monochromatic

#234689 #2F5FB9 #537FD3 #84A3DF #B4C8EC

Accessibility & contrast

On white

3.93

#537FD3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.34

#537FD3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537FD3

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537FD3	#FFFFFF	#000000	##000000
##537FD3	1.00	3.93	5.34	5.34
#FFFFFF	3.93	1.00	21.00	21.00
#000000	5.34	21.00	1.00	1.00
##000000	5.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A87D6

Deuteranopia (green-blind)

#497BD1

Tritanopia (blue-blind)

#00929F

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #537fd3;
/* rgb */ color: rgb(83, 127, 211);
/* oklch */ color: oklch(60.4% 0.137 262.2);

Tailwind

colors: {
  custom: {
    50: '#8ea3e1',
    500: '#537fd3',
    950: '#000000',
  },
}

SCSS

$custom: #537fd3;
$custom-light: #8ea3e1;
$custom-dark: #000000;

JSON

{
  "hex": "#537fd3",
  "rgb": {
    "r": 83,
    "g": 127,
    "b": 211
  },
  "hsl": {
    "h": 219.375,
    "s": 59.259,
    "l": 57.647
  },
  "oklch": {
    "l": 0.60448,
    "c": 0.13726,
    "h": 262.2
  },
  "luminance": 0.21721
}

Semantic roles & 50–950 ramp

primary

#537FD3

secondary

#DBC9A7

accent

#AC45E2

background

#F9FAFD

surface

#F1F3FB

border

#CBCDD4

text

#0D0F15

muted

#7E7F83

Preview Lab

Preview with #537FD3

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

Preview Lab → · Contrast checker → · Palette generator →