#3788BA#3788BA

#3788BA is a mid, moderate cyan. Relative luminance 0.220; OKLCH L 59.9% C 0.109 H 239.5°. Best body text is #000000 at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#3788BA
RGB	rgb(55, 136, 186)
HSL	hsl(203, 54%, 47%)
HSV	hsv(203, 70%, 73%)
CMYK	cmyk(70.4%, 26.9%, 0%, 27.1%)
CIE-LAB	lab(53.99, -8.10, -33.29)
CIE-LCH	lch(53.99, 34.26, 256.33°)
OKLab	oklab(59.95% -0.0553 -0.0939)
OKLCH	oklch(59.95% 0.109 239.5)
XYZ	xyz(19.2392, 21.9636, 49.6703)
Luminance	0.2197 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3788BA #BA6937

analogous

#37BAAB #3788BA #3746BA

triadic

#3788BA #BA3788 #88BA37

tetradic

#3788BA #AB37BA #BA6937 #46BA37

square

#3788BA #AB37BA #BA6937 #46BA37

split-complementary

#3788BA #BA3746 #BAAB37

monochromatic

#1B435C #29658B #3788BA #5FA4D0 #8EBFDE

Accessibility & contrast

On white

3.89

#3788BA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.39

#3788BA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3788BA

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3788BA	#FFFFFF	#000000	##000000
##3788BA	1.00	3.89	5.39	5.39
#FFFFFF	3.89	1.00	21.00	21.00
#000000	5.39	21.00	1.00	1.00
##000000	5.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7188BC

Deuteranopia (green-blind)

#5F7BB9

Tritanopia (blue-blind)

#009599

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3788ba;
/* rgb */ color: rgb(55, 136, 186);
/* oklch */ color: oklch(59.9% 0.109 239.5);

Tailwind

colors: {
  custom: {
    50: '#7eaacf',
    500: '#3788ba',
    950: '#000000',
  },
}

SCSS

$custom: #3788ba;
$custom-light: #7eaacf;
$custom-dark: #000000;

JSON

{
  "hex": "#3788ba",
  "rgb": {
    "r": 55,
    "g": 136,
    "b": 186
  },
  "hsl": {
    "h": 202.901,
    "s": 54.357,
    "l": 47.255
  },
  "oklch": {
    "l": 0.59945,
    "c": 0.10895,
    "h": 239.5
  },
  "luminance": 0.21966
}

Semantic roles & 50–950 ramp

primary

#3788BA

secondary

#C89E85

accent

#824ADE

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3788BA

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

Preview Lab → · Contrast checker → · Palette generator →