#3C81CB#3C81CB

#3C81CB is a mid, vivid cyan. Relative luminance 0.210; OKLCH L 59.4% C 0.133 H 252.4°. Best body text is #000000 at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#3C81CB
RGB	rgb(60, 129, 203)
HSL	hsl(211, 58%, 52%)
HSV	hsv(211, 70%, 80%)
CMYK	cmyk(70.4%, 36.5%, 0%, 20.4%)
CIE-LAB	lab(52.92, 2.74, -44.65)
CIE-LCH	lch(52.92, 44.73, 273.51°)
OKLab	oklab(59.42% -0.0403 -0.127)
OKLCH	oklch(59.42% 0.133 252.4)
XYZ	xyz(20.4892, 20.9708, 59.4563)
Luminance	0.2097 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3C81CB #CB863C

analogous

#3CC9CB #3C81CB #3F3CCB

triadic

#3C81CB #CB3C81 #81CB3C

tetradic

#3C81CB #CB3CC9 #CB863C #3CCB3F

square

#3C81CB #CB3CC9 #CB863C #3CCB3F

split-complementary

#3C81CB #CB3F3C #C9CB3C

monochromatic

#1E456F #2A639F #3C81CB #6CA0D8 #9DBFE5

Accessibility & contrast

On white

4.04

#3C81CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.19

#3C81CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3C81CB

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3C81CB	#FFFFFF	#000000	##000000
##3C81CB	1.00	4.04	5.19	5.19
#FFFFFF	4.04	1.00	21.00	21.00
#000000	5.19	21.00	1.00	1.00
##000000	5.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F86CE

Deuteranopia (green-blind)

#4A78CA

Tritanopia (blue-blind)

#00929C

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #3c81cb;
/* rgb */ color: rgb(60, 129, 203);
/* oklch */ color: oklch(59.4% 0.133 252.4);

Tailwind

colors: {
  custom: {
    50: '#82a5db',
    500: '#3c81cb',
    950: '#000000',
  },
}

SCSS

$custom: #3c81cb;
$custom-light: #82a5db;
$custom-dark: #000000;

JSON

{
  "hex": "#3c81cb",
  "rgb": {
    "r": 60,
    "g": 129,
    "b": 203
  },
  "hsl": {
    "h": 211.049,
    "s": 57.895,
    "l": 51.569
  },
  "oklch": {
    "l": 0.59418,
    "c": 0.13323,
    "h": 252.4
  },
  "luminance": 0.20973
}

Semantic roles & 50–950 ramp

primary

#3C81CB

secondary

#D1B392

accent

#9747E1

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3C81CB

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

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