#3987AC#3987AC

#3987AC is a mid, moderate cyan. Relative luminance 0.212; OKLCH L 59.1% C 0.094 H 232.1°. Best body text is #000000 at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#3987AC
RGB	rgb(57, 135, 172)
HSL	hsl(199, 50%, 45%)
HSV	hsv(199, 67%, 67%)
CMYK	cmyk(66.9%, 21.5%, 0%, 32.5%)
CIE-LAB	lab(53.14, -11.98, -26.58)
CIE-LCH	lch(53.14, 29.15, 245.74°)
OKLab	oklab(59.09% -0.058 -0.0745)
OKLCH	oklch(59.09% 0.094 232.1)
XYZ	xyz(17.7948, 21.1745, 42.1710)
Luminance	0.2118 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3987AC #AC5E39

analogous

#39AC97 #3987AC #394EAC

triadic

#3987AC #AC3987 #87AC39

tetradic

#3987AC #9739AC #AC5E39 #4EAC39

square

#3987AC #9739AC #AC5E39 #4EAC39

split-complementary

#3987AC #AC394E #AC9739

monochromatic

#1B3F50 #2A637E #3987AC #5AA5C8 #88BED8

Accessibility & contrast

On white

4.01

#3987AC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.24

#3987AC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3987AC

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3987AC	#FFFFFF	#000000	##000000
##3987AC	1.00	4.01	5.24	5.24
#FFFFFF	4.01	1.00	21.00	21.00
#000000	5.24	21.00	1.00	1.00
##000000	5.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7585AE

Deuteranopia (green-blind)

#657AAB

Tritanopia (blue-blind)

#009193

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #3987ac;
/* rgb */ color: rgb(57, 135, 172);
/* oklch */ color: oklch(59.1% 0.094 232.1);

Tailwind

colors: {
  custom: {
    50: '#7caac5',
    500: '#3987ac',
    950: '#000000',
  },
}

SCSS

$custom: #3987ac;
$custom-light: #7caac5;
$custom-dark: #000000;

JSON

{
  "hex": "#3987ac",
  "rgb": {
    "r": 57,
    "g": 135,
    "b": 172
  },
  "hsl": {
    "h": 199.304,
    "s": 50.218,
    "l": 44.902
  },
  "oklch": {
    "l": 0.59087,
    "c": 0.09439,
    "h": 232.1
  },
  "luminance": 0.21176
}

Semantic roles & 50–950 ramp

primary

#3987AC

secondary

#C2957F

accent

#7B4EDA

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1012

muted

#7C7F81

Preview Lab

Preview with #3987AC

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

Preview Lab → · Contrast checker → · Palette generator →