#3788BD#3788BD

#3788BD is a mid, moderate cyan. Relative luminance 0.221; OKLCH L 60.1% C 0.112 H 241.0°. Best body text is #000000 at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#3788BD
RGB	rgb(55, 136, 189)
HSL	hsl(204, 55%, 48%)
HSV	hsv(204, 71%, 74%)
CMYK	cmyk(70.9%, 28%, 0%, 25.9%)
CIE-LAB	lab(54.13, -7.06, -34.79)
CIE-LCH	lch(54.13, 35.50, 258.53°)
OKLab	oklab(60.1% -0.0543 -0.0982)
OKLCH	oklch(60.1% 0.112 241)
XYZ	xyz(19.5615, 22.0925, 51.3676)
Luminance	0.2210 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3788BD #BD6C37

analogous

#37BDAF #3788BD #3745BD

triadic

#3788BD #BD3788 #88BD37

tetradic

#3788BD #AF37BD #BD6C37 #45BD37

square

#3788BD #AF37BD #BD6C37 #45BD37

split-complementary

#3788BD #BD3745 #BDAF37

monochromatic

#1B445E #29668E #3788BD #60A4D1 #90BFDF

Accessibility & contrast

On white

3.88

#3788BD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.42

#3788BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3788BD

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3788BD	#FFFFFF	#000000	##000000
##3788BD	1.00	3.88	5.42	5.42
#FFFFFF	3.88	1.00	21.00	21.00
#000000	5.42	21.00	1.00	1.00
##000000	5.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7089BF

Deuteranopia (green-blind)

#5D7CBC

Tritanopia (blue-blind)

#00959A

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3788bd;
/* rgb */ color: rgb(55, 136, 189);
/* oklch */ color: oklch(60.1% 0.112 241.0);

Tailwind

colors: {
  custom: {
    50: '#7eaad1',
    500: '#3788bd',
    950: '#000000',
  },
}

SCSS

$custom: #3788bd;
$custom-light: #7eaad1;
$custom-dark: #000000;

JSON

{
  "hex": "#3788bd",
  "rgb": {
    "r": 55,
    "g": 136,
    "b": 189
  },
  "hsl": {
    "h": 203.731,
    "s": 54.918,
    "l": 47.843
  },
  "oklch": {
    "l": 0.60098,
    "c": 0.11225,
    "h": 241
  },
  "luminance": 0.22095
}

Semantic roles & 50–950 ramp

primary

#3788BD

secondary

#C9A186

accent

#844ADE

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #3788BD

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

Preview Lab → · Contrast checker → · Palette generator →