#3F76BC#3F76BC

#3F76BC is a mid, vivid cyan. Relative luminance 0.176; OKLCH L 56.2% C 0.124 H 255.4°. Best body text is #FFFFFF at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#3F76BC
RGB	rgb(63, 118, 188)
HSL	hsl(214, 50%, 49%)
HSV	hsv(214, 66%, 74%)
CMYK	cmyk(66.5%, 37.2%, 0%, 26.3%)
CIE-LAB	lab(49.06, 4.57, -42.17)
CIE-LCH	lch(49.06, 42.42, 276.18°)
OKLab	oklab(56.18% -0.0311 -0.1198)
OKLCH	oklch(56.18% 0.124 255.4)
XYZ	xyz(17.6021, 17.6427, 50.0449)
Luminance	0.1764 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F76BC #BC853F

analogous

#3FB5BC #3F76BC #473FBC

triadic

#3F76BC #BC3F76 #76BC3F

tetradic

#3F76BC #BC3FB5 #BC853F #3FBC47

square

#3F76BC #BC3FB5 #BC853F #3FBC47

split-complementary

#3F76BC #BC473F #B5BC3F

monochromatic

#203C60 #30598E #3F76BC #6B96CD #99B7DD

Accessibility & contrast

On white

4.64

#3F76BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.53

#3F76BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3F76BC

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F76BC	#FFFFFF	#000000	##FFFFFF
##3F76BC	1.00	4.64	4.53	4.64
#FFFFFF	4.64	1.00	21.00	1.00
#000000	4.53	21.00	1.00	21.00
##FFFFFF	4.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#577BBF

Deuteranopia (green-blind)

#456FBB

Tritanopia (blue-blind)

#008690

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3f76bc;
/* rgb */ color: rgb(63, 118, 188);
/* oklch */ color: oklch(56.2% 0.124 255.4);

Tailwind

colors: {
  custom: {
    50: '#819dd0',
    500: '#3f76bc',
    950: '#000000',
  },
}

SCSS

$custom: #3f76bc;
$custom-light: #819dd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f76bc",
  "rgb": {
    "r": 63,
    "g": 118,
    "b": 188
  },
  "hsl": {
    "h": 213.6,
    "s": 49.801,
    "l": 49.216
  },
  "oklch": {
    "l": 0.56178,
    "c": 0.12382,
    "h": 255.4
  },
  "luminance": 0.17644
}

Semantic roles & 50–950 ramp

primary

#3F76BC

secondary

#C9AF8E

accent

#9C4ED9

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3F76BC

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

Preview Lab → · Contrast checker → · Palette generator →