#5591DB#5591DB

#5591DB is a light, vivid cyan. Relative luminance 0.273; OKLCH L 64.9% C 0.128 H 254.6°. Best body text is #000000 at 6.46:1 contrast (WCAG AA passes).

Color values

HEX	#5591DB
RGB	rgb(85, 145, 219)
HSL	hsl(213, 65%, 60%)
HSV	hsv(213, 61%, 86%)
CMYK	cmyk(61.2%, 33.8%, 0%, 14.1%)
CIE-LAB	lab(59.25, 2.94, -43.59)
CIE-LCH	lch(59.25, 43.69, 273.85°)
OKLab	oklab(64.9% -0.034 -0.1233)
OKLCH	oklch(64.9% 0.128 254.6)
XYZ	xyz(26.6533, 27.2941, 70.8678)
Luminance	0.2730 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5591DB #DB9F55

analogous

#55D4DB #5591DB #5C55DB

triadic

#5591DB #DB5591 #91DB55

tetradic

#5591DB #DB55D4 #DB9F55 #55DB5C

square

#5591DB #DB55D4 #DB9F55 #55DB5C

split-complementary

#5591DB #DB5C55 #D4DB55

monochromatic

#205596 #2A71C8 #5591DB #88B2E6 #BAD2F0

Accessibility & contrast

On white

3.25

#5591DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.46

#5591DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5591DB

6.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5591DB	#FFFFFF	#000000	##000000
##5591DB	1.00	3.25	6.46	6.46
#FFFFFF	3.25	1.00	21.00	21.00
#000000	6.46	21.00	1.00	1.00
##000000	6.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7296DE

Deuteranopia (green-blind)

#5F89D9

Tritanopia (blue-blind)

#00A2AC

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #5591db;
/* rgb */ color: rgb(85, 145, 219);
/* oklch */ color: oklch(64.9% 0.128 254.6);

Tailwind

colors: {
  custom: {
    50: '#90b0e6',
    500: '#5591db',
    950: '#000000',
  },
}

SCSS

$custom: #5591db;
$custom-light: #90b0e6;
$custom-dark: #000000;

JSON

{
  "hex": "#5591db",
  "rgb": {
    "r": 85,
    "g": 145,
    "b": 219
  },
  "hsl": {
    "h": 213.134,
    "s": 65.049,
    "l": 59.608
  },
  "oklch": {
    "l": 0.64898,
    "c": 0.12794,
    "h": 254.6
  },
  "luminance": 0.27297
}

Semantic roles & 50–950 ramp

primary

#5591DB

secondary

#E0C9AC

accent

#9D40E8

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #5591DB

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

Preview Lab → · Contrast checker → · Palette generator →