#3B9DCB#3B9DCB

#3B9DCB is a light, moderate cyan. Relative luminance 0.294; OKLCH L 65.9% C 0.113 H 232.6°. Best body text is #000000 at 6.87:1 contrast (WCAG AA passes).

Color values

HEX	#3B9DCB
RGB	rgb(59, 157, 203)
HSL	hsl(199, 58%, 51%)
HSV	hsv(199, 71%, 80%)
CMYK	cmyk(70.9%, 22.7%, 0%, 20.4%)
CIE-LAB	lab(61.09, -13.50, -31.83)
CIE-LCH	lch(61.09, 34.57, 247.02°)
OKLab	oklab(65.87% -0.0683 -0.0894)
OKLCH	oklch(65.87% 0.113 232.6)
XYZ	xyz(24.6358, 29.3528, 60.8556)
Luminance	0.2936 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B9DCB #CB693B

analogous

#3BCBB1 #3B9DCB #3B55CB

triadic

#3B9DCB #CB3B9D #9DCB3B

tetradic

#3B9DCB #B13BCB #CB693B #55CB3B

square

#3B9DCB #B13BCB #CB693B #55CB3B

split-complementary

#3B9DCB #CB3B55 #CBB13B

monochromatic

#1D546E #2A799F #3B9DCB #6BB5D8 #9CCDE5

Accessibility & contrast

On white

3.06

#3B9DCB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.87

#3B9DCB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3B9DCB

6.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B9DCB	#FFFFFF	#000000	##000000
##3B9DCB	1.00	3.06	6.87	6.87
#FFFFFF	3.06	1.00	21.00	21.00
#000000	6.87	21.00	1.00	1.00
##000000	6.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#869BCD

Deuteranopia (green-blind)

#738DCA

Tritanopia (blue-blind)

#00A9AC

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #3b9dcb;
/* rgb */ color: rgb(59, 157, 203);
/* oklch */ color: oklch(65.9% 0.113 232.6);

Tailwind

colors: {
  custom: {
    50: '#83badb',
    500: '#3b9dcb',
    950: '#000000',
  },
}

SCSS

$custom: #3b9dcb;
$custom-light: #83badb;
$custom-dark: #000000;

JSON

{
  "hex": "#3b9dcb",
  "rgb": {
    "r": 59,
    "g": 157,
    "b": 203
  },
  "hsl": {
    "h": 199.167,
    "s": 58.065,
    "l": 51.373
  },
  "oklch": {
    "l": 0.65868,
    "c": 0.1125,
    "h": 232.6
  },
  "luminance": 0.29356
}

Semantic roles & 50–950 ramp

primary

#3B9DCB

secondary

#D1A591

accent

#7847E1

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #3B9DCB

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

Preview Lab → · Contrast checker → · Palette generator →