#5B91DB#5B91DB

#5B91DB is a light, vivid cyan. Relative luminance 0.276; OKLCH L 65.2% C 0.125 H 256.6°. Best body text is #000000 at 6.52:1 contrast (WCAG AA passes).

Color values

HEX	#5B91DB
RGB	rgb(91, 145, 219)
HSL	hsl(215, 64%, 61%)
HSV	hsv(215, 58%, 86%)
CMYK	cmyk(58.4%, 33.8%, 0%, 14.1%)
CIE-LAB	lab(59.51, 4.09, -43.15)
CIE-LCH	lch(59.51, 43.34, 275.41°)
OKLab	oklab(65.18% -0.0291 -0.122)
OKLCH	oklch(65.18% 0.125 256.6)
XYZ	xyz(27.2215, 27.5871, 70.8944)
Luminance	0.2759 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B91DB #DBA55B

analogous

#5BD1DB #5B91DB #655BDB

triadic

#5B91DB #DB5B91 #91DB5B

tetradic

#5B91DB #DB5BD1 #DBA55B #5BDB65

square

#5B91DB #DB5BD1 #DBA55B #5BDB65

split-complementary

#5B91DB #DB655B #D1DB5B

monochromatic

#22549A #2D70CC #5B91DB #8DB3E6 #BFD4F1

Accessibility & contrast

On white

3.22

#5B91DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.52

#5B91DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B91DB

6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B91DB	#FFFFFF	#000000	##000000
##5B91DB	1.00	3.22	6.52	6.52
#FFFFFF	3.22	1.00	21.00	21.00
#000000	6.52	21.00	1.00	1.00
##000000	6.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7296DE

Deuteranopia (green-blind)

#618AD9

Tritanopia (blue-blind)

#00A2AC

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #5b91db;
/* rgb */ color: rgb(91, 145, 219);
/* oklch */ color: oklch(65.2% 0.125 256.6);

Tailwind

colors: {
  custom: {
    50: '#93b0e6',
    500: '#5b91db',
    950: '#000000',
  },
}

SCSS

$custom: #5b91db;
$custom-light: #93b0e6;
$custom-dark: #000000;

JSON

{
  "hex": "#5b91db",
  "rgb": {
    "r": 91,
    "g": 145,
    "b": 219
  },
  "hsl": {
    "h": 214.688,
    "s": 64,
    "l": 60.784
  },
  "oklch": {
    "l": 0.6518,
    "c": 0.12539,
    "h": 256.6
  },
  "luminance": 0.27589
}

Semantic roles & 50–950 ramp

primary

#5B91DB

secondary

#E1CDB1

accent

#811ACC

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #5B91DB

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

Preview Lab → · Contrast checker → · Palette generator →