#3181A4#3181A4

#3181A4 is a mid, moderate cyan. Relative luminance 0.190; OKLCH L 57.0% C 0.093 H 230.5°. Best body text is #000000 at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#3181A4
RGB	rgb(49, 129, 164)
HSL	hsl(198, 54%, 42%)
HSV	hsv(198, 70%, 64%)
CMYK	cmyk(70.1%, 21.3%, 0%, 35.7%)
CIE-LAB	lab(50.72, -12.60, -25.71)
CIE-LCH	lch(50.72, 28.63, 243.90°)
OKLab	oklab(56.98% -0.0593 -0.0721)
OKLCH	oklch(56.98% 0.093 230.5)
XYZ	xyz(15.8150, 19.0321, 37.9548)
Luminance	0.1903 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3181A4 #A45431

analogous

#31A48E #3181A4 #3148A4

triadic

#3181A4 #A43181 #81A431

tetradic

#3181A4 #8E31A4 #A45431 #48A431

square

#3181A4 #8E31A4 #A45431 #48A431

split-complementary

#3181A4 #A43148 #A48E31

monochromatic

#153746 #235C75 #3181A4 #49A2C9 #79BAD7

Accessibility & contrast

On white

4.37

#3181A4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.81

#3181A4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3181A4

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3181A4	#FFFFFF	#000000	##000000
##3181A4	1.00	4.37	4.81	4.81
#FFFFFF	4.37	1.00	21.00	21.00
#000000	4.81	21.00	1.00	1.00
##000000	4.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F7FA6

Deuteranopia (green-blind)

#5F74A4

Tritanopia (blue-blind)

#008B8D

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #3181a4;
/* rgb */ color: rgb(49, 129, 164);
/* oklch */ color: oklch(57.0% 0.093 230.5);

Tailwind

colors: {
  custom: {
    50: '#78a5bf',
    500: '#3181a4',
    950: '#000000',
  },
}

SCSS

$custom: #3181a4;
$custom-light: #78a5bf;
$custom-dark: #000000;

JSON

{
  "hex": "#3181a4",
  "rgb": {
    "r": 49,
    "g": 129,
    "b": 164
  },
  "hsl": {
    "h": 198.261,
    "s": 53.991,
    "l": 41.765
  },
  "oklch": {
    "l": 0.56982,
    "c": 0.09339,
    "h": 230.5
  },
  "luminance": 0.19034
}

Semantic roles & 50–950 ramp

primary

#3181A4

secondary

#BF8972

accent

#774ADD

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #3181A4

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

Preview Lab → · Contrast checker → · Palette generator →