#537FBE#537FBE

#537FBE is a mid, moderate blue. Relative luminance 0.207; OKLCH L 59.3% C 0.109 H 257.4°. Best body text is #000000 at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#537FBE
RGB	rgb(83, 127, 190)
HSL	hsl(215, 45%, 54%)
HSV	hsv(215, 56%, 75%)
CMYK	cmyk(56.3%, 33.2%, 0%, 25.5%)
CIE-LAB	lab(52.66, 3.66, -37.58)
CIE-LCH	lch(52.66, 37.76, 275.57°)
OKLab	oklab(59.27% -0.0237 -0.106)
OKLCH	oklch(59.27% 0.109 257.4)
XYZ	xyz(20.4477, 20.7338, 51.6297)
Luminance	0.2074 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537FBE #BE9253

analogous

#53B4BE #537FBE #5C53BE

triadic

#537FBE #BE537F #7FBE53

tetradic

#537FBE #BE53B4 #BE9253 #53BE5C

square

#537FBE #BE53B4 #BE9253 #53BE5C

split-complementary

#537FBE #BE5C53 #B4BE53

monochromatic

#29456D #3A619A #537FBE #7FA0CF #ACC1E0

Accessibility & contrast

On white

4.08

#537FBE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.15

#537FBE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537FBE

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537FBE	#FFFFFF	#000000	##000000
##537FBE	1.00	4.08	5.15	5.15
#FFFFFF	4.08	1.00	21.00	21.00
#000000	5.15	21.00	1.00	1.00
##000000	5.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6583C1

Deuteranopia (green-blind)

#5879BD

Tritanopia (blue-blind)

#018D96

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #537fbe;
/* rgb */ color: rgb(83, 127, 190);
/* oklch */ color: oklch(59.3% 0.109 257.4);

Tailwind

colors: {
  custom: {
    50: '#8ba3d2',
    500: '#537fbe',
    950: '#000000',
  },
}

SCSS

$custom: #537fbe;
$custom-light: #8ba3d2;
$custom-dark: #000000;

JSON

{
  "hex": "#537fbe",
  "rgb": {
    "r": 83,
    "g": 127,
    "b": 190
  },
  "hsl": {
    "h": 215.327,
    "s": 45.148,
    "l": 53.529
  },
  "oklch": {
    "l": 0.59266,
    "c": 0.10867,
    "h": 257.4
  },
  "luminance": 0.20735
}

Semantic roles & 50–950 ramp

primary

#537FBE

secondary

#CDBA9F

accent

#9F53D5

background

#F8FAFC

surface

#F0F3F9

border

#CBCDD2

text

#0C0F14

muted

#7D7F82

Preview Lab

Preview with #537FBE

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

Preview Lab → · Contrast checker → · Palette generator →