#3787AF#3787AF

#3787AF is a mid, moderate cyan. Relative luminance 0.212; OKLCH L 59.2% C 0.098 H 233.7°. Best body text is #000000 at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#3787AF
RGB	rgb(55, 135, 175)
HSL	hsl(200, 52%, 45%)
HSV	hsv(200, 69%, 69%)
CMYK	cmyk(68.6%, 22.9%, 0%, 31.4%)
CIE-LAB	lab(53.20, -11.30, -28.21)
CIE-LCH	lch(53.20, 30.39, 248.17°)
OKLab	oklab(59.16% -0.0581 -0.0792)
OKLCH	oklch(59.16% 0.098 233.7)
XYZ	xyz(17.9743, 21.2334, 43.7003)
Luminance	0.2124 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3787AF #AF5F37

analogous

#37AF9B #3787AF #374BAF

triadic

#3787AF #AF3787 #87AF37

tetradic

#3787AF #9B37AF #AF5F37 #4BAF37

square

#3787AF #9B37AF #AF5F37 #4BAF37

split-complementary

#3787AF #AF374B #AF9B37

monochromatic

#1A3F52 #286380 #3787AF #59A5CB #87BED9

Accessibility & contrast

On white

4.00

#3787AF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.25

#3787AF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3787AF

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3787AF	#FFFFFF	#000000	##000000
##3787AF	1.00	4.00	5.25	5.25
#FFFFFF	4.00	1.00	21.00	21.00
#000000	5.25	21.00	1.00	1.00
##000000	5.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7386B1

Deuteranopia (green-blind)

#637AAE

Tritanopia (blue-blind)

#009294

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #3787af;
/* rgb */ color: rgb(55, 135, 175);
/* oklch */ color: oklch(59.2% 0.098 233.7);

Tailwind

colors: {
  custom: {
    50: '#7caac7',
    500: '#3787af',
    950: '#000000',
  },
}

SCSS

$custom: #3787af;
$custom-light: #7caac7;
$custom-dark: #000000;

JSON

{
  "hex": "#3787af",
  "rgb": {
    "r": 55,
    "g": 135,
    "b": 175
  },
  "hsl": {
    "h": 200,
    "s": 52.174,
    "l": 45.098
  },
  "oklch": {
    "l": 0.59163,
    "c": 0.09823,
    "h": 233.7
  },
  "luminance": 0.21235
}

Semantic roles & 50–950 ramp

primary

#3787AF

secondary

#C3957F

accent

#7C4CDC

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3787AF

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

Preview Lab → · Contrast checker → · Palette generator →