#3B81AC#3B81AC

#3B81AC is a mid, moderate cyan. Relative luminance 0.196; OKLCH L 57.7% C 0.096 H 238.6°. Best body text is #000000 at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#3B81AC
RGB	rgb(59, 129, 172)
HSL	hsl(203, 49%, 45%)
HSV	hsv(203, 66%, 67%)
CMYK	cmyk(65.7%, 25%, 0%, 32.5%)
CIE-LAB	lab(51.39, -8.22, -29.29)
CIE-LCH	lch(51.39, 30.42, 254.32°)
OKLab	oklab(57.72% -0.0503 -0.0823)
OKLCH	oklch(57.72% 0.096 238.6)
XYZ	xyz(17.0974, 19.6071, 41.9052)
Luminance	0.1961 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B81AC #AC663B

analogous

#3BAC9F #3B81AC #3B48AC

triadic

#3B81AC #AC3B81 #81AC3B

tetradic

#3B81AC #9F3BAC #AC663B #48AC3B

square

#3B81AC #9F3BAC #AC663B #48AC3B

split-complementary

#3B81AC #AC3B48 #AC9F3B

monochromatic

#1C3D51 #2B5F7E #3B81AC #5D9FC7 #8ABAD7

Accessibility & contrast

On white

4.27

#3B81AC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.92

#3B81AC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3B81AC

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B81AC	#FFFFFF	#000000	##000000
##3B81AC	1.00	4.27	4.92	4.92
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.92	21.00	1.00	1.00
##000000	4.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D81AE

Deuteranopia (green-blind)

#5E75AB

Tritanopia (blue-blind)

#008C90

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #3b81ac;
/* rgb */ color: rgb(59, 129, 172);
/* oklch */ color: oklch(57.7% 0.096 238.6);

Tailwind

colors: {
  custom: {
    50: '#7da5c5',
    500: '#3b81ac',
    950: '#000000',
  },
}

SCSS

$custom: #3b81ac;
$custom-light: #7da5c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3b81ac",
  "rgb": {
    "r": 59,
    "g": 129,
    "b": 172
  },
  "hsl": {
    "h": 202.832,
    "s": 48.918,
    "l": 45.294
  },
  "oklch": {
    "l": 0.57715,
    "c": 0.09646,
    "h": 238.6
  },
  "luminance": 0.19609
}

Semantic roles & 50–950 ramp

primary

#3B81AC

secondary

#C19A81

accent

#844FD8

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B0F12

muted

#7C7F81

Preview Lab

Preview with #3B81AC

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

Preview Lab → · Contrast checker → · Palette generator →