#3783B0#3783B0

#3783B0 is a mid, moderate cyan. Relative luminance 0.202; OKLCH L 58.3% C 0.101 H 238.1°. Best body text is #000000 at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#3783B0
RGB	rgb(55, 131, 176)
HSL	hsl(202, 52%, 45%)
HSV	hsv(202, 69%, 69%)
CMYK	cmyk(68.8%, 25.6%, 0%, 31%)
CIE-LAB	lab(52.04, -8.68, -30.60)
CIE-LCH	lch(52.04, 31.81, 254.16°)
OKLab	oklab(58.25% -0.0536 -0.0861)
OKLCH	oklch(58.25% 0.101 238.1)
XYZ	xyz(17.5253, 20.1775, 44.0369)
Luminance	0.2018 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3783B0 #B06437

analogous

#37B0A0 #3783B0 #3746B0

triadic

#3783B0 #B03783 #83B037

tetradic

#3783B0 #A037B0 #B06437 #46B037

square

#3783B0 #A037B0 #B06437 #46B037

split-complementary

#3783B0 #B03746 #B0A037

monochromatic

#1A3E53 #286081 #3783B0 #59A1CB #88BBDA

Accessibility & contrast

On white

4.17

#3783B0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.04

#3783B0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3783B0

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3783B0	#FFFFFF	#000000	##000000
##3783B0	1.00	4.17	5.04	5.04
#FFFFFF	4.17	1.00	21.00	21.00
#000000	5.04	21.00	1.00	1.00
##000000	5.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E83B2

Deuteranopia (green-blind)

#5D77AF

Tritanopia (blue-blind)

#008E92

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3783b0;
/* rgb */ color: rgb(55, 131, 176);
/* oklch */ color: oklch(58.3% 0.101 238.1);

Tailwind

colors: {
  custom: {
    50: '#7ca7c7',
    500: '#3783b0',
    950: '#000000',
  },
}

SCSS

$custom: #3783b0;
$custom-light: #7ca7c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3783b0",
  "rgb": {
    "r": 55,
    "g": 131,
    "b": 176
  },
  "hsl": {
    "h": 202.314,
    "s": 52.381,
    "l": 45.294
  },
  "oklch": {
    "l": 0.5825,
    "c": 0.10143,
    "h": 238.1
  },
  "luminance": 0.20179
}

Semantic roles & 50–950 ramp

primary

#3783B0

secondary

#C4997F

accent

#814CDC

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3783B0

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

Preview Lab → · Contrast checker → · Palette generator →