#5BB4DB#5BB4DB

#5BB4DB is a light, moderate cyan. Relative luminance 0.400; OKLCH L 73.0% C 0.102 H 229.1°. Best body text is #000000 at 9.00:1 contrast (WCAG AA passes).

Color values

HEX	#5BB4DB
RGB	rgb(91, 180, 219)
HSL	hsl(198, 64%, 61%)
HSV	hsv(198, 58%, 86%)
CMYK	cmyk(58.4%, 17.8%, 0%, 14.1%)
CIE-LAB	lab(69.45, -15.44, -27.68)
CIE-LCH	lch(69.45, 31.69, 240.85°)
OKLab	oklab(73.02% -0.0669 -0.0772)
OKLCH	oklch(73.02% 0.102 229.1)
XYZ	xyz(33.4169, 39.9779, 72.9596)
Luminance	0.3998 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB4DB #DB825B

analogous

#5BDBC2 #5BB4DB #5B74DB

triadic

#5BB4DB #DB5BB4 #B4DB5B

tetradic

#5BB4DB #C25BDB #DB825B #74DB5B

square

#5BB4DB #C25BDB #DB825B #74DB5B

split-complementary

#5BB4DB #DB5B74 #DBC25B

monochromatic

#22759A #2D9BCC #5BB4DB #8DCBE6 #BFE2F1

Accessibility & contrast

On white

2.33

#5BB4DB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.00

#5BB4DB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB4DB

9.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB4DB	#FFFFFF	#000000	##000000
##5BB4DB	1.00	2.33	9.00	9.00
#FFFFFF	2.33	1.00	21.00	21.00
#000000	9.00	21.00	1.00	1.00
##000000	9.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A0B1DD

Deuteranopia (green-blind)

#8EA4DA

Tritanopia (blue-blind)

#00BFC1

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #5bb4db;
/* rgb */ color: rgb(91, 180, 219);
/* oklch */ color: oklch(73.0% 0.102 229.1);

Tailwind

colors: {
  custom: {
    50: '#94cae6',
    500: '#5bb4db',
    950: '#000000',
  },
}

SCSS

$custom: #5bb4db;
$custom-light: #94cae6;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb4db",
  "rgb": {
    "r": 91,
    "g": 180,
    "b": 219
  },
  "hsl": {
    "h": 198.281,
    "s": 64,
    "l": 60.784
  },
  "oklch": {
    "l": 0.73025,
    "c": 0.10214,
    "h": 229.1
  },
  "luminance": 0.39981
}

Semantic roles & 50–950 ramp

primary

#5BB4DB

secondary

#E1BFB1

accent

#501ACC

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #5BB4DB

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

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