#537EC7#537EC7

#537EC7 is a mid, vivid blue. Relative luminance 0.209; OKLCH L 59.5% C 0.122 H 260.4°. Best body text is #000000 at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#537EC7
RGB	rgb(83, 126, 199)
HSL	hsl(218, 51%, 55%)
HSV	hsv(218, 58%, 78%)
CMYK	cmyk(58.3%, 36.7%, 0%, 22%)
CIE-LAB	lab(52.82, 7.22, -42.47)
CIE-LCH	lch(52.82, 43.07, 279.65°)
OKLab	oklab(59.54% -0.0203 -0.1203)
OKLCH	oklch(59.54% 0.122 260.4)
XYZ	xyz(21.3334, 20.8824, 56.9283)
Luminance	0.2088 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537EC7 #C79C53

analogous

#53B8C7 #537EC7 #6253C7

triadic

#537EC7 #C7537E #7EC753

tetradic

#537EC7 #C753B8 #C79C53 #53C762

square

#537EC7 #C753B8 #C79C53 #53C762

split-complementary

#537EC7 #C76253 #B8C753

monochromatic

#274578 #3660A7 #537EC7 #81A1D6 #AFC3E5

Accessibility & contrast

On white

4.06

#537EC7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.18

#537EC7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537EC7

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537EC7	#FFFFFF	#000000	##000000
##537EC7	1.00	4.06	5.18	5.18
#FFFFFF	4.06	1.00	21.00	21.00
#000000	5.18	21.00	1.00	1.00
##000000	5.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6084CA

Deuteranopia (green-blind)

#5079C5

Tritanopia (blue-blind)

#008E99

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #537ec7;
/* rgb */ color: rgb(83, 126, 199);
/* oklch */ color: oklch(59.5% 0.122 260.4);

Tailwind

colors: {
  custom: {
    50: '#8ca3d8',
    500: '#537ec7',
    950: '#000000',
  },
}

SCSS

$custom: #537ec7;
$custom-light: #8ca3d8;
$custom-dark: #000000;

JSON

{
  "hex": "#537ec7",
  "rgb": {
    "r": 83,
    "g": 126,
    "b": 199
  },
  "hsl": {
    "h": 217.759,
    "s": 50.877,
    "l": 55.294
  },
  "oklch": {
    "l": 0.5954,
    "c": 0.12199,
    "h": 260.4
  },
  "luminance": 0.20884
}

Semantic roles & 50–950 ramp

primary

#537EC7

secondary

#D3C1A3

accent

#A64DDA

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0F14

muted

#7E7E83

Preview Lab

Preview with #537EC7

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

Preview Lab → · Contrast checker → · Palette generator →