#3788B3#3788B3

#3788B3 is a mid, moderate cyan. Relative luminance 0.217; OKLCH L 59.6% C 0.102 H 235.4°. Best body text is #000000 at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#3788B3
RGB	rgb(55, 136, 179)
HSL	hsl(201, 53%, 46%)
HSV	hsv(201, 69%, 70%)
CMYK	cmyk(69.3%, 24%, 0%, 29.8%)
CIE-LAB	lab(53.68, -10.50, -29.77)
CIE-LCH	lch(53.68, 31.57, 250.57°)
OKLab	oklab(59.6% -0.0577 -0.0837)
OKLCH	oklch(59.6% 0.102 235.4)
XYZ	xyz(18.5132, 21.6732, 45.8467)
Luminance	0.2167 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3788B3 #B36237

analogous

#37B3A0 #3788B3 #374AB3

triadic

#3788B3 #B33788 #88B337

tetradic

#3788B3 #A037B3 #B36237 #4AB337

square

#3788B3 #A037B3 #B36237 #4AB337

split-complementary

#3788B3 #B3374A #B3A037

monochromatic

#1A4155 #296484 #3788B3 #5BA5CD #8ABFDB

Accessibility & contrast

On white

3.94

#3788B3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.33

#3788B3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3788B3

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3788B3	#FFFFFF	#000000	##000000
##3788B3	1.00	3.94	5.33	5.33
#FFFFFF	3.94	1.00	21.00	21.00
#000000	5.33	21.00	1.00	1.00
##000000	5.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7387B5

Deuteranopia (green-blind)

#627BB2

Tritanopia (blue-blind)

#009397

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #3788b3;
/* rgb */ color: rgb(55, 136, 179);
/* oklch */ color: oklch(59.6% 0.102 235.4);

Tailwind

colors: {
  custom: {
    50: '#7daaca',
    500: '#3788b3',
    950: '#000000',
  },
}

SCSS

$custom: #3788b3;
$custom-light: #7daaca;
$custom-dark: #000000;

JSON

{
  "hex": "#3788b3",
  "rgb": {
    "r": 55,
    "g": 136,
    "b": 179
  },
  "hsl": {
    "h": 200.806,
    "s": 52.991,
    "l": 45.882
  },
  "oklch": {
    "l": 0.59597,
    "c": 0.10166,
    "h": 235.4
  },
  "luminance": 0.21675
}

Semantic roles & 50–950 ramp

primary

#3788B3

secondary

#C59881

accent

#7E4BDC

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3788B3

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

Preview Lab → · Contrast checker → · Palette generator →