#3B9FCB#3B9FCB

#3B9FCB is a light, moderate cyan. Relative luminance 0.300; OKLCH L 66.3% C 0.112 H 231.0°. Best body text is #000000 at 7.01:1 contrast (WCAG AA passes).

Color values

HEX	#3B9FCB
RGB	rgb(59, 159, 203)
HSL	hsl(198, 58%, 51%)
HSV	hsv(198, 71%, 80%)
CMYK	cmyk(70.9%, 21.7%, 0%, 20.4%)
CIE-LAB	lab(61.68, -14.59, -30.91)
CIE-LCH	lch(61.68, 34.18, 244.74°)
OKLab	oklab(66.34% -0.0702 -0.0868)
OKLCH	oklch(66.34% 0.112 231)
XYZ	xyz(24.9769, 30.0350, 60.9693)
Luminance	0.3004 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B9FCB #CB673B

analogous

#3BCBAF #3B9FCB #3B57CB

triadic

#3B9FCB #CB3B9F #9FCB3B

tetradic

#3B9FCB #AF3BCB #CB673B #57CB3B

square

#3B9FCB #AF3BCB #CB673B #57CB3B

split-complementary

#3B9FCB #CB3B57 #CBAF3B

monochromatic

#1D566E #2A7B9F #3B9FCB #6BB7D8 #9CCEE5

Accessibility & contrast

On white

3.00

#3B9FCB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

7.01

#3B9FCB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #3B9FCB

7.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B9FCB	#FFFFFF	#000000	##000000
##3B9FCB	1.00	3.00	7.01	7.01
#FFFFFF	3.00	1.00	21.00	21.00
#000000	7.01	21.00	1.00	1.00
##000000	7.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#899DCD

Deuteranopia (green-blind)

#758FCA

Tritanopia (blue-blind)

#00ABAE

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #3b9fcb;
/* rgb */ color: rgb(59, 159, 203);
/* oklch */ color: oklch(66.3% 0.112 231.0);

Tailwind

colors: {
  custom: {
    50: '#83bbdb',
    500: '#3b9fcb',
    950: '#000000',
  },
}

SCSS

$custom: #3b9fcb;
$custom-light: #83bbdb;
$custom-dark: #000000;

JSON

{
  "hex": "#3b9fcb",
  "rgb": {
    "r": 59,
    "g": 159,
    "b": 203
  },
  "hsl": {
    "h": 198.333,
    "s": 58.065,
    "l": 51.373
  },
  "oklch": {
    "l": 0.6634,
    "c": 0.11164,
    "h": 231
  },
  "luminance": 0.30038
}

Semantic roles & 50–950 ramp

primary

#3B9FCB

secondary

#D1A591

accent

#7647E1

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #3B9FCB

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

Preview Lab → · Contrast checker → · Palette generator →