#5191BC#5191BC

#5191BC is a light, moderate cyan. Relative luminance 0.256; OKLCH L 63.2% C 0.093 H 239.9°. Best body text is #000000 at 6.13:1 contrast (WCAG AA passes).

Color values

HEX	#5191BC
RGB	rgb(81, 145, 188)
HSL	hsl(204, 44%, 53%)
HSV	hsv(204, 57%, 74%)
CMYK	cmyk(56.9%, 22.9%, 0%, 26.3%)
CIE-LAB	lab(57.68, -7.87, -28.61)
CIE-LCH	lch(57.68, 29.67, 254.61°)
OKLab	oklab(63.16% -0.0465 -0.08)
OKLCH	oklch(63.16% 0.093 239.9)
XYZ	xyz(22.5925, 25.6290, 51.3235)
Luminance	0.2563 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5191BC #BC7C51

analogous

#51BCB1 #5191BC #515CBC

triadic

#5191BC #BC5191 #91BC51

tetradic

#5191BC #B151BC #BC7C51 #5CBC51

square

#5191BC #B151BC #BC7C51 #5CBC51

split-complementary

#5191BC #BC515C #BCB151

monochromatic

#29506A #3A7196 #5191BC #7DADCD #A9C9DE

Accessibility & contrast

On white

3.43

#5191BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.13

#5191BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5191BC

6.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5191BC	#FFFFFF	#000000	##000000
##5191BC	1.00	3.43	6.13	6.13
#FFFFFF	3.43	1.00	21.00	21.00
#000000	6.13	21.00	1.00	1.00
##000000	6.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E91BE

Deuteranopia (green-blind)

#6F86BB

Tritanopia (blue-blind)

#009C9F

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #5191bc;
/* rgb */ color: rgb(81, 145, 188);
/* oklch */ color: oklch(63.2% 0.093 239.9);

Tailwind

colors: {
  custom: {
    50: '#8ab1d0',
    500: '#5191bc',
    950: '#000000',
  },
}

SCSS

$custom: #5191bc;
$custom-light: #8ab1d0;
$custom-dark: #000000;

JSON

{
  "hex": "#5191bc",
  "rgb": {
    "r": 81,
    "g": 145,
    "b": 188
  },
  "hsl": {
    "h": 204.112,
    "s": 44.398,
    "l": 52.745
  },
  "oklch": {
    "l": 0.63164,
    "c": 0.09255,
    "h": 239.9
  },
  "luminance": 0.25631
}

Semantic roles & 50–950 ramp

primary

#5191BC

secondary

#CCB09D

accent

#8754D4

background

#F8FAFC

surface

#F0F5F9

border

#CBCFD2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #5191BC

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

Preview Lab → · Contrast checker → · Palette generator →