#5BB4EC#5BB4EC

#5BB4EC is a light, moderate cyan. Relative luminance 0.409; OKLCH L 73.8% C 0.118 H 238.8°. Best body text is #000000 at 9.18:1 contrast (WCAG AA passes).

Color values

HEX	#5BB4EC
RGB	rgb(91, 180, 236)
HSL	hsl(203, 79%, 64%)
HSV	hsv(203, 61%, 93%)
CMYK	cmyk(61.4%, 23.7%, 0%, 7.5%)
CIE-LAB	lab(70.12, -10.21, -35.93)
CIE-LCH	lch(70.12, 37.35, 254.13°)
OKLab	oklab(73.77% -0.0611 -0.1008)
OKLCH	oklch(73.77% 0.118 238.8)
XYZ	xyz(35.7702, 40.9193, 85.3537)
Luminance	0.4092 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB4EC #EC935B

analogous

#5BECDB #5BB4EC #5B6CEC

triadic

#5BB4EC #EC5BB4 #B4EC5B

tetradic

#5BB4EC #DB5BEC #EC935B #6CEC5B

square

#5BB4EC #DB5BEC #EC935B #6CEC5B

split-complementary

#5BB4EC #EC5B6C #ECDB5B

monochromatic

#1579B7 #249BE6 #5BB4EC #92CDF2 #C9E6F9

Accessibility & contrast

On white

2.29

#5BB4EC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.18

#5BB4EC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB4EC

9.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB4EC	#FFFFFF	#000000	##000000
##5BB4EC	1.00	2.29	9.18	9.18
#FFFFFF	2.29	1.00	21.00	21.00
#000000	9.18	21.00	1.00	1.00
##000000	9.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9AB4EF

Deuteranopia (green-blind)

#86A5EB

Tritanopia (blue-blind)

#00C2C7

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #5bb4ec;
/* rgb */ color: rgb(91, 180, 236);
/* oklch */ color: oklch(73.8% 0.118 238.8);

Tailwind

colors: {
  custom: {
    50: '#96caf2',
    500: '#5bb4ec',
    950: '#000000',
  },
}

SCSS

$custom: #5bb4ec;
$custom-light: #96caf2;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb4ec",
  "rgb": {
    "r": 91,
    "g": 180,
    "b": 236
  },
  "hsl": {
    "h": 203.172,
    "s": 79.235,
    "l": 64.118
  },
  "oklch": {
    "l": 0.73774,
    "c": 0.11786,
    "h": 238.8
  },
  "luminance": 0.40923
}

Semantic roles & 50–950 ramp

primary

#5BB4EC

secondary

#EBCCB8

accent

#5B0ADC

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1317

muted

#7E8285

Preview Lab

Preview with #5BB4EC

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

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