#3788B7#3788B7

#3788B7 is a mid, moderate cyan. Relative luminance 0.218; OKLCH L 59.8% C 0.106 H 237.8°. Best body text is #000000 at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#3788B7
RGB	rgb(55, 136, 183)
HSL	hsl(202, 54%, 47%)
HSV	hsv(202, 70%, 72%)
CMYK	cmyk(69.9%, 25.7%, 0%, 28.2%)
CIE-LAB	lab(53.85, -9.13, -31.79)
CIE-LCH	lch(53.85, 33.07, 253.97°)
OKLab	oklab(59.79% -0.0563 -0.0895)
OKLCH	oklch(59.79% 0.106 237.8)
XYZ	xyz(18.9236, 21.8374, 48.0083)
Luminance	0.2184 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3788B7 #B76637

analogous

#37B7A6 #3788B7 #3748B7

triadic

#3788B7 #B73788 #88B737

tetradic

#3788B7 #A637B7 #B76637 #48B737

square

#3788B7 #A637B7 #B76637 #48B737

split-complementary

#3788B7 #B73748 #B7A637

monochromatic

#1B4259 #296588 #3788B7 #5DA5CE #8CBFDC

Accessibility & contrast

On white

3.91

#3788B7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.37

#3788B7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3788B7

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3788B7	#FFFFFF	#000000	##000000
##3788B7	1.00	3.91	5.37	5.37
#FFFFFF	3.91	1.00	21.00	21.00
#000000	5.37	21.00	1.00	1.00
##000000	5.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7288B9

Deuteranopia (green-blind)

#607BB6

Tritanopia (blue-blind)

#009498

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3788b7;
/* rgb */ color: rgb(55, 136, 183);
/* oklch */ color: oklch(59.8% 0.106 237.8);

Tailwind

colors: {
  custom: {
    50: '#7daacc',
    500: '#3788b7',
    950: '#000000',
  },
}

SCSS

$custom: #3788b7;
$custom-light: #7daacc;
$custom-dark: #000000;

JSON

{
  "hex": "#3788b7",
  "rgb": {
    "r": 55,
    "g": 136,
    "b": 183
  },
  "hsl": {
    "h": 202.031,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.59794,
    "c": 0.10577,
    "h": 237.8
  },
  "luminance": 0.21839
}

Semantic roles & 50–950 ramp

primary

#3788B7

secondary

#C79C83

accent

#804BDD

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3788B7

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

Preview Lab → · Contrast checker → · Palette generator →