#3787BF#3787BF

#3787BF is a mid, moderate cyan. Relative luminance 0.219; OKLCH L 60.0% C 0.115 H 242.8°. Best body text is #000000 at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#3787BF
RGB	rgb(55, 135, 191)
HSL	hsl(205, 55%, 48%)
HSV	hsv(205, 71%, 75%)
CMYK	cmyk(71.2%, 29.3%, 0%, 25.1%)
CIE-LAB	lab(53.92, -5.78, -36.25)
CIE-LCH	lch(53.92, 36.71, 260.94°)
OKLab	oklab(59.97% -0.0527 -0.1025)
OKLCH	oklch(59.97% 0.115 242.8)
XYZ	xyz(19.6399, 21.8996, 52.4721)
Luminance	0.2190 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3787BF #BF6F37

analogous

#37BFB3 #3787BF #3743BF

triadic

#3787BF #BF3787 #87BF37

tetradic

#3787BF #B337BF #BF6F37 #43BF37

square

#3787BF #B337BF #BF6F37 #43BF37

split-complementary

#3787BF #BF3743 #BFB337

monochromatic

#1C4460 #29658F #3787BF #62A3D2 #91BFDF

Accessibility & contrast

On white

3.90

#3787BF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.38

#3787BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3787BF

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3787BF	#FFFFFF	#000000	##000000
##3787BF	1.00	3.90	5.38	5.38
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.38	21.00	1.00	1.00
##000000	5.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D88C1

Deuteranopia (green-blind)

#5B7BBE

Tritanopia (blue-blind)

#00959B

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3787bf;
/* rgb */ color: rgb(55, 135, 191);
/* oklch */ color: oklch(60.0% 0.115 242.8);

Tailwind

colors: {
  custom: {
    50: '#7ea9d2',
    500: '#3787bf',
    950: '#000000',
  },
}

SCSS

$custom: #3787bf;
$custom-light: #7ea9d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3787bf",
  "rgb": {
    "r": 55,
    "g": 135,
    "b": 191
  },
  "hsl": {
    "h": 204.706,
    "s": 55.285,
    "l": 48.235
  },
  "oklch": {
    "l": 0.59967,
    "c": 0.11523,
    "h": 242.8
  },
  "luminance": 0.21902
}

Semantic roles & 50–950 ramp

primary

#3787BF

secondary

#CAA388

accent

#8749DF

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3787BF

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

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