#3C77CC#3C77CC

#3C77CC is a mid, vivid blue. Relative luminance 0.185; OKLCH L 57.3% C 0.145 H 257.8°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#3C77CC
RGB	rgb(60, 119, 204)
HSL	hsl(215, 59%, 52%)
HSV	hsv(215, 71%, 80%)
CMYK	cmyk(70.6%, 41.7%, 0%, 20%)
CIE-LAB	lab(50.11, 9.20, -49.68)
CIE-LCH	lch(50.11, 50.53, 280.49°)
OKLab	oklab(57.25% -0.0307 -0.1419)
OKLCH	oklch(57.25% 0.145 257.8)
XYZ	xyz(19.3554, 18.5119, 59.6681)
Luminance	0.1851 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3C77CC #CC913C

analogous

#3CBFCC #3C77CC #493CCC

triadic

#3C77CC #CC3C77 #77CC3C

tetradic

#3C77CC #CC3CBF #CC913C #3CCC49

square

#3C77CC #CC3CBF #CC913C #3CCC49

split-complementary

#3C77CC #CC493C #BFCC3C

monochromatic

#1D3F70 #2A5BA1 #3C77CC #6D99D9 #9DBBE5

Accessibility & contrast

On white

4.47

#3C77CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#3C77CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3C77CC

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3C77CC	#FFFFFF	#000000	##000000
##3C77CC	1.00	4.47	4.70	4.70
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F7ECF

Deuteranopia (green-blind)

#3771CA

Tritanopia (blue-blind)

#008B97

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3c77cc;
/* rgb */ color: rgb(60, 119, 204);
/* oklch */ color: oklch(57.3% 0.145 257.8);

Tailwind

colors: {
  custom: {
    50: '#839ddc',
    500: '#3c77cc',
    950: '#000000',
  },
}

SCSS

$custom: #3c77cc;
$custom-light: #839ddc;
$custom-dark: #000000;

JSON

{
  "hex": "#3c77cc",
  "rgb": {
    "r": 60,
    "g": 119,
    "b": 204
  },
  "hsl": {
    "h": 215.417,
    "s": 58.537,
    "l": 51.765
  },
  "oklch": {
    "l": 0.5725,
    "c": 0.14517,
    "h": 257.8
  },
  "luminance": 0.18514
}

Semantic roles & 50–950 ramp

primary

#3C77CC

secondary

#D1B892

accent

#A246E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3C77CC

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

Preview Lab → · Contrast checker → · Palette generator →