#3187AA#3187AA

#3187AA is a mid, moderate cyan. Relative luminance 0.209; OKLCH L 58.7% C 0.096 H 229.0°. Best body text is #000000 at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#3187AA
RGB	rgb(49, 135, 170)
HSL	hsl(197, 55%, 43%)
HSV	hsv(197, 71%, 67%)
CMYK	cmyk(71.2%, 20.6%, 0%, 33.3%)
CIE-LAB	lab(52.82, -13.91, -25.94)
CIE-LCH	lch(52.82, 29.44, 241.80°)
OKLab	oklab(58.74% -0.0633 -0.0727)
OKLCH	oklch(58.74% 0.096 229)
XYZ	xyz(17.1834, 20.8813, 41.1473)
Luminance	0.2088 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3187AA #AA5431

analogous

#31AA90 #3187AA #314BAA

triadic

#3187AA #AA3187 #87AA31

tetradic

#3187AA #9031AA #AA5431 #4BAA31

square

#3187AA #9031AA #AA5431 #4BAA31

split-complementary

#3187AA #AA314B #AA9031

monochromatic

#163C4B #23617A #3187AA #4DA7CC #7CBED9

Accessibility & contrast

On white

4.06

#3187AA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.18

#3187AA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3187AA

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3187AA	#FFFFFF	#000000	##000000
##3187AA	1.00	4.06	5.18	5.18
#FFFFFF	4.06	1.00	21.00	21.00
#000000	5.18	21.00	1.00	1.00
##000000	5.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7585AC

Deuteranopia (green-blind)

#6479AA

Tritanopia (blue-blind)

#009193

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #3187aa;
/* rgb */ color: rgb(49, 135, 170);
/* oklch */ color: oklch(58.7% 0.096 229.0);

Tailwind

colors: {
  custom: {
    50: '#79aac3',
    500: '#3187aa',
    950: '#000000',
  },
}

SCSS

$custom: #3187aa;
$custom-light: #79aac3;
$custom-dark: #000000;

JSON

{
  "hex": "#3187aa",
  "rgb": {
    "r": 49,
    "g": 135,
    "b": 170
  },
  "hsl": {
    "h": 197.355,
    "s": 55.251,
    "l": 42.941
  },
  "oklch": {
    "l": 0.58737,
    "c": 0.09644,
    "h": 229
  },
  "luminance": 0.20883
}

Semantic roles & 50–950 ramp

primary

#3187AA

secondary

#C28B75

accent

#7449DF

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #3187AA

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

Preview Lab → · Contrast checker → · Palette generator →