#537EBC#537EBC

#537EBC is a mid, moderate blue. Relative luminance 0.204; OKLCH L 58.9% C 0.107 H 257.5°. Best body text is #000000 at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#537EBC
RGB	rgb(83, 126, 188)
HSL	hsl(215, 44%, 53%)
HSV	hsv(215, 56%, 74%)
CMYK	cmyk(55.9%, 33%, 0%, 26.3%)
CIE-LAB	lab(52.28, 3.61, -37.04)
CIE-LCH	lch(52.28, 37.21, 275.57°)
OKLab	oklab(58.94% -0.0231 -0.1045)
OKLCH	oklch(58.94% 0.107 257.5)
XYZ	xyz(20.1021, 20.3899, 50.4435)
Luminance	0.2039 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537EBC #BC9153

analogous

#53B2BC #537EBC #5C53BC

triadic

#537EBC #BC537E #7EBC53

tetradic

#537EBC #BC53B2 #BC9153 #53BC5C

square

#537EBC #BC53B2 #BC9153 #53BC5C

split-complementary

#537EBC #BC5C53 #B2BC53

monochromatic

#2A446B #3B6197 #537EBC #7F9FCD #ABC0DE

Accessibility & contrast

On white

4.14

#537EBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.08

#537EBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537EBC

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537EBC	#FFFFFF	#000000	##000000
##537EBC	1.00	4.14	5.08	5.08
#FFFFFF	4.14	1.00	21.00	21.00
#000000	5.08	21.00	1.00	1.00
##000000	5.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6582BF

Deuteranopia (green-blind)

#5878BB

Tritanopia (blue-blind)

#098C94

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #537ebc;
/* rgb */ color: rgb(83, 126, 188);
/* oklch */ color: oklch(58.9% 0.107 257.5);

Tailwind

colors: {
  custom: {
    50: '#8ba3d0',
    500: '#537ebc',
    950: '#000000',
  },
}

SCSS

$custom: #537ebc;
$custom-light: #8ba3d0;
$custom-dark: #000000;

JSON

{
  "hex": "#537ebc",
  "rgb": {
    "r": 83,
    "g": 126,
    "b": 188
  },
  "hsl": {
    "h": 215.429,
    "s": 43.933,
    "l": 53.137
  },
  "oklch": {
    "l": 0.58937,
    "c": 0.10699,
    "h": 257.5
  },
  "luminance": 0.20392
}

Semantic roles & 50–950 ramp

primary

#537EBC

secondary

#CCB99F

accent

#9F54D4

background

#F8FAFC

surface

#F0F3F9

border

#CBCDD2

text

#0C0F14

muted

#7D7F82

Preview Lab

Preview with #537EBC

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

Preview Lab → · Contrast checker → · Palette generator →