#537FBF#537FBF

#537FBF is a mid, moderate blue. Relative luminance 0.208; OKLCH L 59.3% C 0.110 H 257.7°. Best body text is #000000 at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#537FBF
RGB	rgb(83, 127, 191)
HSL	hsl(216, 46%, 54%)
HSV	hsv(216, 57%, 75%)
CMYK	cmyk(56.5%, 33.5%, 0%, 25.1%)
CIE-LAB	lab(52.71, 3.99, -38.08)
CIE-LCH	lch(52.71, 38.29, 275.98°)
OKLab	oklab(59.32% -0.0234 -0.1075)
OKLCH	oklch(59.32% 0.11 257.7)
XYZ	xyz(20.5573, 20.7776, 52.2073)
Luminance	0.2078 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537FBF #BF9353

analogous

#53B5BF #537FBF #5D53BF

triadic

#537FBF #BF537F #7FBF53

tetradic

#537FBF #BF53B5 #BF9353 #53BF5D

square

#537FBF #BF53B5 #BF9353 #53BF5D

split-complementary

#537FBF #BF5D53 #B5BF53

monochromatic

#29456E #3A619B #537FBF #80A0D0 #ACC1E0

Accessibility & contrast

On white

4.07

#537FBF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.16

#537FBF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537FBF

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537FBF	#FFFFFF	#000000	##000000
##537FBF	1.00	4.07	5.16	5.16
#FFFFFF	4.07	1.00	21.00	21.00
#000000	5.16	21.00	1.00	1.00
##000000	5.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6583C2

Deuteranopia (green-blind)

#5779BE

Tritanopia (blue-blind)

#008D96

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #537fbf;
/* rgb */ color: rgb(83, 127, 191);
/* oklch */ color: oklch(59.3% 0.110 257.7);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#537fbf",
  "rgb": {
    "r": 83,
    "g": 127,
    "b": 191
  },
  "hsl": {
    "h": 215.556,
    "s": 45.763,
    "l": 53.725
  },
  "oklch": {
    "l": 0.5932,
    "c": 0.11002,
    "h": 257.7
  },
  "luminance": 0.20779
}

Semantic roles & 50–950 ramp

primary

#537FBF

secondary

#CEBBA0

accent

#A052D5

background

#F8FAFC

surface

#F0F3F9

border

#CBCDD2

text

#0D0F14

muted

#7D7F82

Preview Lab

Preview with #537FBF

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

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