#537FBD#537FBD

#537FBD is a mid, moderate blue. Relative luminance 0.207; OKLCH L 59.2% C 0.107 H 257.1°. Best body text is #000000 at 5.14:1 contrast (WCAG AA passes).

Color values

HEX	#537FBD
RGB	rgb(83, 127, 189)
HSL	hsl(215, 45%, 53%)
HSV	hsv(215, 56%, 74%)
CMYK	cmyk(56.1%, 32.8%, 0%, 25.9%)
CIE-LAB	lab(52.61, 3.34, -37.09)
CIE-LCH	lch(52.61, 37.24, 275.14°)
OKLab	oklab(59.21% -0.024 -0.1046)
OKLCH	oklch(59.21% 0.107 257.1)
XYZ	xyz(20.3388, 20.6902, 51.0561)
Luminance	0.2069 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537FBD #BD9153

analogous

#53B4BD #537FBD #5C53BD

triadic

#537FBD #BD537F #7FBD53

tetradic

#537FBD #BD53B4 #BD9153 #53BD5C

square

#537FBD #BD53B4 #BD9153 #53BD5C

split-complementary

#537FBD #BD5C53 #B4BD53

monochromatic

#29456C #3A6198 #537FBD #7FA0CE #ABC1DF

Accessibility & contrast

On white

4.09

#537FBD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.14

#537FBD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537FBD

5.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537FBD	#FFFFFF	#000000	##000000
##537FBD	1.00	4.09	5.14	5.14
#FFFFFF	4.09	1.00	21.00	21.00
#000000	5.14	21.00	1.00	1.00
##000000	5.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6683C0

Deuteranopia (green-blind)

#5879BC

Tritanopia (blue-blind)

#048D95

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #537fbd;
/* rgb */ color: rgb(83, 127, 189);
/* oklch */ color: oklch(59.2% 0.107 257.1);

Tailwind

colors: {
  custom: {
    50: '#8ba3d1',
    500: '#537fbd',
    950: '#000000',
  },
}

SCSS

$custom: #537fbd;
$custom-light: #8ba3d1;
$custom-dark: #000000;

JSON

{
  "hex": "#537fbd",
  "rgb": {
    "r": 83,
    "g": 127,
    "b": 189
  },
  "hsl": {
    "h": 215.094,
    "s": 44.538,
    "l": 53.333
  },
  "oklch": {
    "l": 0.59213,
    "c": 0.10732,
    "h": 257.1
  },
  "luminance": 0.20692
}

Semantic roles & 50–950 ramp

primary

#537FBD

secondary

#CDBA9F

accent

#9F54D4

background

#F8FAFC

surface

#F0F3F9

border

#CBCDD2

text

#0C0F14

muted

#7D7F82

Preview Lab

Preview with #537FBD

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

Preview Lab → · Contrast checker → · Palette generator →