#3987B2#3987B2

#3987B2 is a mid, moderate cyan. Relative luminance 0.214; OKLCH L 59.4% C 0.100 H 236.2°. Best body text is #000000 at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#3987B2
RGB	rgb(57, 135, 178)
HSL	hsl(201, 51%, 46%)
HSV	hsv(201, 68%, 70%)
CMYK	cmyk(68%, 24.2%, 0%, 30.2%)
CIE-LAB	lab(53.40, -9.96, -29.63)
CIE-LCH	lch(53.40, 31.26, 251.42°)
OKLab	oklab(59.38% -0.0558 -0.0833)
OKLCH	oklch(59.38% 0.1 236.2)
XYZ	xyz(18.3841, 21.4102, 45.2746)
Luminance	0.2141 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3987B2 #B26439

analogous

#39B2A0 #3987B2 #394BB2

triadic

#3987B2 #B23987 #87B239

tetradic

#3987B2 #A039B2 #B26439 #4BB239

square

#3987B2 #A039B2 #B26439 #4BB239

split-complementary

#3987B2 #B2394B #B2A039

monochromatic

#1B4155 #2A6484 #3987B2 #5DA4CB #8BBEDA

Accessibility & contrast

On white

3.98

#3987B2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.28

#3987B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3987B2

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3987B2	#FFFFFF	#000000	##000000
##3987B2	1.00	3.98	5.28	5.28
#FFFFFF	3.98	1.00	21.00	21.00
#000000	5.28	21.00	1.00	1.00
##000000	5.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7386B4

Deuteranopia (green-blind)

#627AB1

Tritanopia (blue-blind)

#009296

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #3987b2;
/* rgb */ color: rgb(57, 135, 178);
/* oklch */ color: oklch(59.4% 0.100 236.2);

Tailwind

colors: {
  custom: {
    50: '#7da9c9',
    500: '#3987b2',
    950: '#000000',
  },
}

SCSS

$custom: #3987b2;
$custom-light: #7da9c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3987b2",
  "rgb": {
    "r": 57,
    "g": 135,
    "b": 178
  },
  "hsl": {
    "h": 201.322,
    "s": 51.489,
    "l": 46.078
  },
  "oklch": {
    "l": 0.59375,
    "c": 0.10025,
    "h": 236.2
  },
  "luminance": 0.21412
}

Semantic roles & 50–950 ramp

primary

#3987B2

secondary

#C49A82

accent

#7F4DDB

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3987B2

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

Preview Lab → · Contrast checker → · Palette generator →