#3B9BCB#3B9BCB

#3B9BCB is a light, moderate cyan. Relative luminance 0.287; OKLCH L 65.4% C 0.113 H 234.3°. Best body text is #000000 at 6.74:1 contrast (WCAG AA passes).

Color values

HEX	#3B9BCB
RGB	rgb(59, 155, 203)
HSL	hsl(200, 58%, 51%)
HSV	hsv(200, 71%, 80%)
CMYK	cmyk(70.9%, 23.6%, 0%, 20.4%)
CIE-LAB	lab(60.50, -12.40, -32.75)
CIE-LCH	lch(60.50, 35.02, 249.26°)
OKLab	oklab(65.4% -0.0663 -0.0921)
OKLCH	oklch(65.4% 0.113 234.3)
XYZ	xyz(24.3002, 28.6816, 60.7437)
Luminance	0.2868 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B9BCB #CB6B3B

analogous

#3BCBB3 #3B9BCB #3B53CB

triadic

#3B9BCB #CB3B9B #9BCB3B

tetradic

#3B9BCB #B33BCB #CB6B3B #53CB3B

square

#3B9BCB #B33BCB #CB6B3B #53CB3B

split-complementary

#3B9BCB #CB3B53 #CBB33B

monochromatic

#1D536E #2A789F #3B9BCB #6BB4D8 #9CCCE5

Accessibility & contrast

On white

3.12

#3B9BCB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.74

#3B9BCB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3B9BCB

6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B9BCB	#FFFFFF	#000000	##000000
##3B9BCB	1.00	3.12	6.74	6.74
#FFFFFF	3.12	1.00	21.00	21.00
#000000	6.74	21.00	1.00	1.00
##000000	6.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#849ACD

Deuteranopia (green-blind)

#708CCA

Tritanopia (blue-blind)

#00A8AB

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #3b9bcb;
/* rgb */ color: rgb(59, 155, 203);
/* oklch */ color: oklch(65.4% 0.113 234.3);

Tailwind

colors: {
  custom: {
    50: '#83b8db',
    500: '#3b9bcb',
    950: '#000000',
  },
}

SCSS

$custom: #3b9bcb;
$custom-light: #83b8db;
$custom-dark: #000000;

JSON

{
  "hex": "#3b9bcb",
  "rgb": {
    "r": 59,
    "g": 155,
    "b": 203
  },
  "hsl": {
    "h": 200,
    "s": 58.065,
    "l": 51.373
  },
  "oklch": {
    "l": 0.65396,
    "c": 0.11347,
    "h": 234.3
  },
  "luminance": 0.28684
}

Semantic roles & 50–950 ramp

primary

#3B9BCB

secondary

#D1A691

accent

#7A47E1

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #3B9BCB

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

Preview Lab → · Contrast checker → · Palette generator →