#537DD3#537DD3

#537DD3 is a mid, vivid blue. Relative luminance 0.212; OKLCH L 60.0% C 0.140 H 263.2°. Best body text is #000000 at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#537DD3
RGB	rgb(83, 125, 211)
HSL	hsl(220, 59%, 58%)
HSV	hsv(220, 61%, 83%)
CMYK	cmyk(60.7%, 40.8%, 0%, 17.3%)
CIE-LAB	lab(53.18, 11.84, -48.71)
CIE-LCH	lch(53.18, 50.13, 283.66°)
OKLab	oklab(60.02% -0.0166 -0.1386)
OKLCH	oklch(60.02% 0.14 263.2)
XYZ	xyz(22.6547, 21.2074, 64.5150)
Luminance	0.2121 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537DD3 #D3A953

analogous

#53BDD3 #537DD3 #6953D3

triadic

#537DD3 #D3537D #7DD353

tetradic

#537DD3 #D353BD #D3A953 #53D369

square

#537DD3 #D353BD #D3A953 #53D369

split-complementary

#537DD3 #D36953 #BDD353

monochromatic

#234489 #2F5DB9 #537DD3 #84A2DF #B4C7EC

Accessibility & contrast

On white

4.01

#537DD3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.24

#537DD3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537DD3

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537DD3	#FFFFFF	#000000	##000000
##537DD3	1.00	4.01	5.24	5.24
#FFFFFF	4.01	1.00	21.00	21.00
#000000	5.24	21.00	1.00	1.00
##000000	5.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5785D6

Deuteranopia (green-blind)

#457AD1

Tritanopia (blue-blind)

#00909E

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #537dd3;
/* rgb */ color: rgb(83, 125, 211);
/* oklch */ color: oklch(60.0% 0.140 263.2);

Tailwind

colors: {
  custom: {
    50: '#8ea2e1',
    500: '#537dd3',
    950: '#000000',
  },
}

SCSS

$custom: #537dd3;
$custom-light: #8ea2e1;
$custom-dark: #000000;

JSON

{
  "hex": "#537dd3",
  "rgb": {
    "r": 83,
    "g": 125,
    "b": 211
  },
  "hsl": {
    "h": 220.313,
    "s": 59.259,
    "l": 57.647
  },
  "oklch": {
    "l": 0.60021,
    "c": 0.13958,
    "h": 263.2
  },
  "luminance": 0.21209
}

Semantic roles & 50–950 ramp

primary

#537DD3

secondary

#DBCAA7

accent

#AF45E2

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #537DD3

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

Preview Lab → · Contrast checker → · Palette generator →