#3791BE#3791BE

#3791BE is a light, moderate cyan. Relative luminance 0.248; OKLCH L 62.3% C 0.108 H 234.2°. Best body text is #000000 at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#3791BE
RGB	rgb(55, 145, 190)
HSL	hsl(200, 55%, 48%)
HSV	hsv(200, 71%, 75%)
CMYK	cmyk(71.1%, 23.7%, 0%, 25.5%)
CIE-LAB	lab(56.86, -11.82, -31.09)
CIE-LCH	lch(56.86, 33.26, 249.19°)
OKLab	oklab(62.28% -0.063 -0.0874)
OKLCH	oklch(62.28% 0.108 234.2)
XYZ	xyz(20.9915, 24.7784, 52.3816)
Luminance	0.2478 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3791BE #BE6437

analogous

#37BEA7 #3791BE #374DBE

triadic

#3791BE #BE3791 #91BE37

tetradic

#3791BE #A737BE #BE6437 #4DBE37

square

#3791BE #A737BE #BE6437 #4DBE37

split-complementary

#3791BE #BE374D #BEA737

monochromatic

#1C495F #296D8F #3791BE #61ACD1 #90C5DF

Accessibility & contrast

On white

3.53

#3791BE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.96

#3791BE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3791BE

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3791BE	#FFFFFF	#000000	##000000
##3791BE	1.00	3.53	5.96	5.96
#FFFFFF	3.53	1.00	21.00	21.00
#000000	5.96	21.00	1.00	1.00
##000000	5.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B90C0

Deuteranopia (green-blind)

#6983BD

Tritanopia (blue-blind)

#009DA0

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #3791be;
/* rgb */ color: rgb(55, 145, 190);
/* oklch */ color: oklch(62.3% 0.108 234.2);

Tailwind

colors: {
  custom: {
    50: '#7fb1d1',
    500: '#3791be',
    950: '#000000',
  },
}

SCSS

$custom: #3791be;
$custom-light: #7fb1d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3791be",
  "rgb": {
    "r": 55,
    "g": 145,
    "b": 190
  },
  "hsl": {
    "h": 200,
    "s": 55.102,
    "l": 48.039
  },
  "oklch": {
    "l": 0.62284,
    "c": 0.10778,
    "h": 234.2
  },
  "luminance": 0.24781
}

Semantic roles & 50–950 ramp

primary

#3791BE

secondary

#CA9D87

accent

#7B49DE

background

#F8FAFC

surface

#EFF5F9

border

#CACFD2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #3791BE

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

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