#537ECF#537ECF

#537ECF is a mid, vivid blue. Relative luminance 0.213; OKLCH L 60.0% C 0.133 H 262.0°. Best body text is #000000 at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#537ECF
RGB	rgb(83, 126, 207)
HSL	hsl(219, 56%, 57%)
HSV	hsv(219, 60%, 81%)
CMYK	cmyk(59.9%, 39.1%, 0%, 18.8%)
CIE-LAB	lab(53.24, 9.89, -46.35)
CIE-LCH	lch(53.24, 47.39, 282.04°)
OKLab	oklab(60% -0.0184 -0.1316)
OKLCH	oklch(60% 0.133 262)
XYZ	xyz(22.2867, 21.2638, 61.9492)
Luminance	0.2127 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537ECF #CFA453

analogous

#53BCCF #537ECF #6653CF

triadic

#537ECF #CF537E #7ECF53

tetradic

#537ECF #CF53BC #CFA453 #53CF66

square

#537ECF #CF53BC #CFA453 #53CF66

split-complementary

#537ECF #CF6653 #BCCF53

monochromatic

#254583 #325FB3 #537ECF #83A2DC #B3C6EA

Accessibility & contrast

On white

4.00

#537ECF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.25

#537ECF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537ECF

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537ECF	#FFFFFF	#000000	##000000
##537ECF	1.00	4.00	5.25	5.25
#FFFFFF	4.00	1.00	21.00	21.00
#000000	5.25	21.00	1.00	1.00
##000000	5.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B85D2

Deuteranopia (green-blind)

#4A7ACD

Tritanopia (blue-blind)

#00909C

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #537ecf;
/* rgb */ color: rgb(83, 126, 207);
/* oklch */ color: oklch(60.0% 0.133 262.0);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#537ecf",
  "rgb": {
    "r": 83,
    "g": 126,
    "b": 207
  },
  "hsl": {
    "h": 219.194,
    "s": 56.364,
    "l": 56.863
  },
  "oklch": {
    "l": 0.59999,
    "c": 0.13294,
    "h": 262
  },
  "luminance": 0.21266
}

Semantic roles & 50–950 ramp

primary

#537ECF

secondary

#D8C7A6

accent

#AB48E0

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #537ECF

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

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