#5BB9DB#5BB9DB

#5BB9DB is a light, moderate cyan. Relative luminance 0.420; OKLCH L 74.2% C 0.101 H 224.4°. Best body text is #000000 at 9.41:1 contrast (WCAG AA passes).

Color values

HEX	#5BB9DB
RGB	rgb(91, 185, 219)
HSL	hsl(196, 64%, 61%)
HSV	hsv(196, 58%, 86%)
CMYK	cmyk(58.4%, 15.5%, 0%, 14.1%)
CIE-LAB	lab(70.89, -18.07, -25.47)
CIE-LCH	lch(70.89, 31.23, 234.65°)
OKLab	oklab(74.17% -0.0723 -0.0709)
OKLCH	oklch(74.17% 0.101 224.4)
XYZ	xyz(34.4445, 42.0332, 73.3021)
Luminance	0.4204 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB9DB #DB7D5B

analogous

#5BDBBD #5BB9DB #5B79DB

triadic

#5BB9DB #DB5BB9 #B9DB5B

tetradic

#5BB9DB #BD5BDB #DB7D5B #79DB5B

square

#5BB9DB #BD5BDB #DB7D5B #79DB5B

split-complementary

#5BB9DB #DB5B79 #DBBD5B

monochromatic

#227A9A #2DA2CC #5BB9DB #8DCEE6 #BFE4F1

Accessibility & contrast

On white

2.23

#5BB9DB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.41

#5BB9DB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB9DB

9.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB9DB	#FFFFFF	#000000	##000000
##5BB9DB	1.00	2.23	9.41	9.41
#FFFFFF	2.23	1.00	21.00	21.00
#000000	9.41	21.00	1.00	1.00
##000000	9.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A6B5DD

Deuteranopia (green-blind)

#94A8DB

Tritanopia (blue-blind)

#00C3C4

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #5bb9db;
/* rgb */ color: rgb(91, 185, 219);
/* oklch */ color: oklch(74.2% 0.101 224.4);

Tailwind

colors: {
  custom: {
    50: '#94cee6',
    500: '#5bb9db',
    950: '#000000',
  },
}

SCSS

$custom: #5bb9db;
$custom-light: #94cee6;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb9db",
  "rgb": {
    "r": 91,
    "g": 185,
    "b": 219
  },
  "hsl": {
    "h": 195.938,
    "s": 64,
    "l": 60.784
  },
  "oklch": {
    "l": 0.74174,
    "c": 0.10124,
    "h": 224.4
  },
  "luminance": 0.42037
}

Semantic roles & 50–950 ramp

primary

#5BB9DB

secondary

#E1BEB1

accent

#491ACC

background

#F9FCFE

surface

#F2F9FC

border

#CCD2D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #5BB9DB

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

Preview Lab → · Contrast checker → · Palette generator →