#5BB5DB#5BB5DB

#5BB5DB is a light, moderate cyan. Relative luminance 0.404; OKLCH L 73.3% C 0.102 H 228.2°. Best body text is #000000 at 9.08:1 contrast (WCAG AA passes).

Color values

HEX	#5BB5DB
RGB	rgb(91, 181, 219)
HSL	hsl(198, 64%, 61%)
HSV	hsv(198, 58%, 86%)
CMYK	cmyk(58.4%, 17.4%, 0%, 14.1%)
CIE-LAB	lab(69.74, -15.97, -27.24)
CIE-LCH	lch(69.74, 31.57, 239.62°)
OKLab	oklab(73.26% -0.068 -0.0759)
OKLCH	oklch(73.26% 0.102 228.2)
XYZ	xyz(33.6195, 40.3831, 73.0271)
Luminance	0.4039 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB5DB #DB815B

analogous

#5BDBC1 #5BB5DB #5B75DB

triadic

#5BB5DB #DB5BB5 #B5DB5B

tetradic

#5BB5DB #C15BDB #DB815B #75DB5B

square

#5BB5DB #C15BDB #DB815B #75DB5B

split-complementary

#5BB5DB #DB5B75 #DBC15B

monochromatic

#22769A #2D9DCC #5BB5DB #8DCCE6 #BFE2F1

Accessibility & contrast

On white

2.31

#5BB5DB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.08

#5BB5DB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB5DB

9.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB5DB	#FFFFFF	#000000	##000000
##5BB5DB	1.00	2.31	9.08	9.08
#FFFFFF	2.31	1.00	21.00	21.00
#000000	9.08	21.00	1.00	1.00
##000000	9.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A1B2DD

Deuteranopia (green-blind)

#8FA4DB

Tritanopia (blue-blind)

#00C0C1

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #5bb5db;
/* rgb */ color: rgb(91, 181, 219);
/* oklch */ color: oklch(73.3% 0.102 228.2);

Tailwind

colors: {
  custom: {
    50: '#94cbe6',
    500: '#5bb5db',
    950: '#000000',
  },
}

SCSS

$custom: #5bb5db;
$custom-light: #94cbe6;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb5db",
  "rgb": {
    "r": 91,
    "g": 181,
    "b": 219
  },
  "hsl": {
    "h": 197.813,
    "s": 64,
    "l": 60.784
  },
  "oklch": {
    "l": 0.73255,
    "c": 0.10191,
    "h": 228.2
  },
  "luminance": 0.40386
}

Semantic roles & 50–950 ramp

primary

#5BB5DB

secondary

#E1BFB1

accent

#4F1ACC

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #5BB5DB

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

Preview Lab → · Contrast checker → · Palette generator →