#5BB1DB#5BB1DB

#5BB1DB is a light, moderate cyan. Relative luminance 0.388; OKLCH L 72.3% C 0.103 H 231.8°. Best body text is #000000 at 8.76:1 contrast (WCAG AA passes).

Color values

HEX	#5BB1DB
RGB	rgb(91, 177, 219)
HSL	hsl(200, 64%, 61%)
HSV	hsv(200, 58%, 86%)
CMYK	cmyk(58.4%, 19.2%, 0%, 14.1%)
CIE-LAB	lab(68.59, -13.84, -29.01)
CIE-LCH	lch(68.59, 32.14, 244.48°)
OKLab	oklab(72.34% -0.0637 -0.081)
OKLCH	oklch(72.34% 0.103 231.8)
XYZ	xyz(32.8178, 38.7798, 72.7599)
Luminance	0.3878 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB1DB #DB855B

analogous

#5BDBC5 #5BB1DB #5B71DB

triadic

#5BB1DB #DB5BB1 #B1DB5B

tetradic

#5BB1DB #C55BDB #DB855B #71DB5B

square

#5BB1DB #C55BDB #DB855B #71DB5B

split-complementary

#5BB1DB #DB5B71 #DBC55B

monochromatic

#22729A #2D98CC #5BB1DB #8DC9E6 #BFE1F1

Accessibility & contrast

On white

2.40

#5BB1DB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.76

#5BB1DB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB1DB

8.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB1DB	#FFFFFF	#000000	##000000
##5BB1DB	1.00	2.40	8.76	8.76
#FFFFFF	2.40	1.00	21.00	21.00
#000000	8.76	21.00	1.00	1.00
##000000	8.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9CAFDD

Deuteranopia (green-blind)

#8AA1DA

Tritanopia (blue-blind)

#00BCBF

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #5bb1db;
/* rgb */ color: rgb(91, 177, 219);
/* oklch */ color: oklch(72.3% 0.103 231.8);

Tailwind

colors: {
  custom: {
    50: '#94c8e6',
    500: '#5bb1db',
    950: '#000000',
  },
}

SCSS

$custom: #5bb1db;
$custom-light: #94c8e6;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb1db",
  "rgb": {
    "r": 91,
    "g": 177,
    "b": 219
  },
  "hsl": {
    "h": 199.688,
    "s": 64,
    "l": 60.784
  },
  "oklch": {
    "l": 0.72339,
    "c": 0.103,
    "h": 231.8
  },
  "luminance": 0.38783
}

Semantic roles & 50–950 ramp

primary

#5BB1DB

secondary

#E1C1B1

accent

#541ACC

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #5BB1DB

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

Preview Lab → · Contrast checker → · Palette generator →