#3A81CC#3A81CC

#3A81CC is a mid, vivid cyan. Relative luminance 0.210; OKLCH L 59.4% C 0.135 H 252.2°. Best body text is #000000 at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#3A81CC
RGB	rgb(58, 129, 204)
HSL	hsl(211, 59%, 51%)
HSV	hsv(211, 72%, 80%)
CMYK	cmyk(71.6%, 36.8%, 0%, 20%)
CIE-LAB	lab(52.90, 2.81, -45.24)
CIE-LCH	lch(52.90, 45.33, 273.55°)
OKLab	oklab(59.4% -0.0414 -0.1287)
OKLCH	oklch(59.4% 0.135 252.2)
XYZ	xyz(20.4902, 20.9574, 60.0803)
Luminance	0.2096 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A81CC #CC853A

analogous

#3ACACC #3A81CC #3C3ACC

triadic

#3A81CC #CC3A81 #81CC3A

tetradic

#3A81CC #CC3ACA #CC853A #3ACC3C

square

#3A81CC #CC3ACA #CC853A #3ACC3C

split-complementary

#3A81CC #CC3C3A #CACC3A

monochromatic

#1D456F #2963A0 #3A81CC #6BA0D9 #9BBFE5

Accessibility & contrast

On white

4.04

#3A81CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.19

#3A81CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3A81CC

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A81CC	#FFFFFF	#000000	##000000
##3A81CC	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)

#5F86CF

Deuteranopia (green-blind)

#4978CB

Tritanopia (blue-blind)

#00939D

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #3a81cc;
/* rgb */ color: rgb(58, 129, 204);
/* oklch */ color: oklch(59.4% 0.135 252.2);

Tailwind

colors: {
  custom: {
    50: '#82a5dc',
    500: '#3a81cc',
    950: '#000000',
  },
}

SCSS

$custom: #3a81cc;
$custom-light: #82a5dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3a81cc",
  "rgb": {
    "r": 58,
    "g": 129,
    "b": 204
  },
  "hsl": {
    "h": 210.822,
    "s": 58.871,
    "l": 51.373
  },
  "oklch": {
    "l": 0.59405,
    "c": 0.13523,
    "h": 252.2
  },
  "luminance": 0.2096
}

Semantic roles & 50–950 ramp

primary

#3A81CC

secondary

#D1B291

accent

#9646E2

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3A81CC

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

Preview Lab → · Contrast checker → · Palette generator →