#5B91BA#5B91BA

#5B91BA is a light, moderate cyan. Relative luminance 0.260; OKLCH L 63.6% C 0.084 H 242.5°. Best body text is #000000 at 6.20:1 contrast (WCAG AA passes).

Color values

HEX	#5B91BA
RGB	rgb(91, 145, 186)
HSL	hsl(206, 41%, 54%)
HSV	hsv(206, 51%, 73%)
CMYK	cmyk(51.1%, 22%, 0%, 27.1%)
CIE-LAB	lab(58.05, -6.28, -26.87)
CIE-LCH	lch(58.05, 27.59, 256.85°)
OKLab	oklab(63.55% -0.039 -0.0749)
OKLCH	oklch(63.55% 0.084 242.5)
XYZ	xyz(23.2996, 26.0183, 50.2391)
Luminance	0.2602 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B91BA #BA845B

analogous

#5BBAB4 #5B91BA #5B62BA

triadic

#5B91BA #BA5B91 #91BA5B

tetradic

#5B91BA #B45BBA #BA845B #62BA5B

square

#5B91BA #B45BBA #BA845B #62BA5B

split-complementary

#5B91BA #BA5B62 #BAB45B

monochromatic

#2E526D #407298 #5B91BA #86AECC #B1CBDE

Accessibility & contrast

On white

3.38

#5B91BA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.20

#5B91BA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B91BA

6.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B91BA	#FFFFFF	#000000	##000000
##5B91BA	1.00	3.38	6.20	6.20
#FFFFFF	3.38	1.00	21.00	21.00
#000000	6.20	21.00	1.00	1.00
##000000	6.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F91BC

Deuteranopia (green-blind)

#7387B9

Tritanopia (blue-blind)

#299B9F

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #5b91ba;
/* rgb */ color: rgb(91, 145, 186);
/* oklch */ color: oklch(63.6% 0.084 242.5);

Tailwind

colors: {
  custom: {
    50: '#8fb1cf',
    500: '#5b91ba',
    950: '#000000',
  },
}

SCSS

$custom: #5b91ba;
$custom-light: #8fb1cf;
$custom-dark: #000000;

JSON

{
  "hex": "#5b91ba",
  "rgb": {
    "r": 91,
    "g": 145,
    "b": 186
  },
  "hsl": {
    "h": 205.895,
    "s": 40.773,
    "l": 54.314
  },
  "oklch": {
    "l": 0.63554,
    "c": 0.08447,
    "h": 242.5
  },
  "luminance": 0.2602
}

Semantic roles & 50–950 ramp

primary

#5B91BA

secondary

#CDB6A4

accent

#8C57D1

background

#F9FAFC

surface

#F1F5F9

border

#CBCFD2

text

#0D1013

muted

#7E7F82

Preview Lab

Preview with #5B91BA

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

Preview Lab → · Contrast checker → · Palette generator →