#5BB1E7#5BB1E7

#5BB1E7 is a light, moderate cyan. Relative luminance 0.394; OKLCH L 72.9% C 0.114 H 238.6°. Best body text is #000000 at 8.89:1 contrast (WCAG AA passes).

Color values

HEX	#5BB1E7
RGB	rgb(91, 177, 231)
HSL	hsl(203, 74%, 63%)
HSV	hsv(203, 61%, 91%)
CMYK	cmyk(60.6%, 23.4%, 0%, 9.4%)
CIE-LAB	lab(69.06, -10.15, -34.84)
CIE-LCH	lch(69.06, 36.29, 253.76°)
OKLab	oklab(72.87% -0.0596 -0.0977)
OKLCH	oklch(72.87% 0.114 238.6)
XYZ	xyz(34.4549, 39.4346, 81.3817)
Luminance	0.3944 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB1E7 #E7915B

analogous

#5BE7D7 #5BB1E7 #5B6BE7

triadic

#5BB1E7 #E75BB1 #B1E75B

tetradic

#5BB1E7 #D75BE7 #E7915B #6BE75B

square

#5BB1E7 #D75BE7 #E7915B #6BE75B

split-complementary

#5BB1E7 #E75B6B #E7D75B

monochromatic

#1975AE #2698DF #5BB1E7 #90CAEF #C6E4F7

Accessibility & contrast

On white

2.36

#5BB1E7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.89

#5BB1E7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB1E7

8.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB1E7	#FFFFFF	#000000	##000000
##5BB1E7	1.00	2.36	8.89	8.89
#FFFFFF	2.36	1.00	21.00	21.00
#000000	8.89	21.00	1.00	1.00
##000000	8.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#98B1EA

Deuteranopia (green-blind)

#85A2E6

Tritanopia (blue-blind)

#00BFC3

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #5bb1e7;
/* rgb */ color: rgb(91, 177, 231);
/* oklch */ color: oklch(72.9% 0.114 238.6);

Tailwind

colors: {
  custom: {
    50: '#95c8ee',
    500: '#5bb1e7',
    950: '#000000',
  },
}

SCSS

$custom: #5bb1e7;
$custom-light: #95c8ee;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb1e7",
  "rgb": {
    "r": 91,
    "g": 177,
    "b": 231
  },
  "hsl": {
    "h": 203.143,
    "s": 74.468,
    "l": 63.137
  },
  "oklch": {
    "l": 0.72871,
    "c": 0.11443,
    "h": 238.6
  },
  "luminance": 0.39438
}

Semantic roles & 50–950 ramp

primary

#5BB1E7

secondary

#E8C9B6

accent

#5C0FD7

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #5BB1E7

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

Preview Lab → · Contrast checker → · Palette generator →