#5BBCE9#5BBCE9

#5BBCE9 is a light, moderate cyan. Relative luminance 0.441; OKLCH L 75.4% C 0.112 H 230.9°. Best body text is #000000 at 9.81:1 contrast (WCAG AA passes).

Color values

HEX	#5BBCE9
RGB	rgb(91, 188, 233)
HSL	hsl(199, 76%, 64%)
HSV	hsv(199, 61%, 91%)
CMYK	cmyk(60.9%, 19.3%, 0%, 8.6%)
CIE-LAB	lab(72.28, -15.41, -30.96)
CIE-LCH	lch(72.28, 34.59, 243.53°)
OKLab	oklab(75.45% -0.0704 -0.0865)
OKLCH	oklch(75.45% 0.112 230.9)
XYZ	xyz(36.9999, 44.0701, 83.6315)
Luminance	0.4407 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BBCE9 #E9885B

analogous

#5BE9CF #5BBCE9 #5B75E9

triadic

#5BBCE9 #E95BBC #BCE95B

tetradic

#5BBCE9 #CF5BE9 #E9885B #75E95B

square

#5BBCE9 #CF5BE9 #E9885B #75E95B

split-complementary

#5BBCE9 #E95B75 #E9CF5B

monochromatic

#1881B2 #25A6E2 #5BBCE9 #91D2F0 #C7E8F7

Accessibility & contrast

On white

2.14

#5BBCE9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.81

#5BBCE9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BBCE9

9.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BBCE9	#FFFFFF	#000000	##000000
##5BBCE9	1.00	2.14	9.81	9.81
#FFFFFF	2.14	1.00	21.00	21.00
#000000	9.81	21.00	1.00	1.00
##000000	9.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A5BAEB

Deuteranopia (green-blind)

#92ABE8

Tritanopia (blue-blind)

#00C8CB

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #5bbce9;
/* rgb */ color: rgb(91, 188, 233);
/* oklch */ color: oklch(75.4% 0.112 230.9);

Tailwind

colors: {
  custom: {
    50: '#96d0f0',
    500: '#5bbce9',
    950: '#000000',
  },
}

SCSS

$custom: #5bbce9;
$custom-light: #96d0f0;
$custom-dark: #000000;

JSON

{
  "hex": "#5bbce9",
  "rgb": {
    "r": 91,
    "g": 188,
    "b": 233
  },
  "hsl": {
    "h": 199.014,
    "s": 76.344,
    "l": 63.529
  },
  "oklch": {
    "l": 0.75448,
    "c": 0.11154,
    "h": 230.9
  },
  "luminance": 0.44074
}

Semantic roles & 50–950 ramp

primary

#5BBCE9

secondary

#E9C7B7

accent

#4D0DD9

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0E1416

muted

#7E8284

Preview Lab

Preview with #5BBCE9

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

Preview Lab → · Contrast checker → · Palette generator →