#3C77CB#3C77CB

#3C77CB is a mid, vivid blue. Relative luminance 0.185; OKLCH L 57.2% C 0.144 H 257.6°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#3C77CB
RGB	rgb(60, 119, 203)
HSL	hsl(215, 58%, 52%)
HSV	hsv(215, 70%, 80%)
CMYK	cmyk(70.4%, 41.4%, 0%, 20.4%)
CIE-LAB	lab(50.05, 8.84, -49.20)
CIE-LCH	lch(50.05, 49.99, 280.19°)
OKLab	oklab(57.19% -0.0309 -0.1405)
OKLCH	oklch(57.19% 0.144 257.6)
XYZ	xyz(19.2359, 18.4641, 59.0385)
Luminance	0.1847 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3C77CB #CB903C

analogous

#3CBFCB #3C77CB #493CCB

triadic

#3C77CB #CB3C77 #77CB3C

tetradic

#3C77CB #CB3CBF #CB903C #3CCB49

square

#3C77CB #CB3CBF #CB903C #3CCB49

split-complementary

#3C77CB #CB493C #BFCB3C

monochromatic

#1E3F6F #2A5B9F #3C77CB #6C99D8 #9DBAE5

Accessibility & contrast

On white

4.47

#3C77CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#3C77CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3C77CB

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3C77CB	#FFFFFF	#000000	##000000
##3C77CB	1.00	4.47	4.69	4.69
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.69	21.00	1.00	1.00
##000000	4.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F7ECE

Deuteranopia (green-blind)

#3871C9

Tritanopia (blue-blind)

#008B97

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3c77cb;
/* rgb */ color: rgb(60, 119, 203);
/* oklch */ color: oklch(57.2% 0.144 257.6);

Tailwind

colors: {
  custom: {
    50: '#829ddb',
    500: '#3c77cb',
    950: '#000000',
  },
}

SCSS

$custom: #3c77cb;
$custom-light: #829ddb;
$custom-dark: #000000;

JSON

{
  "hex": "#3c77cb",
  "rgb": {
    "r": 60,
    "g": 119,
    "b": 203
  },
  "hsl": {
    "h": 215.245,
    "s": 57.895,
    "l": 51.569
  },
  "oklch": {
    "l": 0.57187,
    "c": 0.14384,
    "h": 257.6
  },
  "luminance": 0.18466
}

Semantic roles & 50–950 ramp

primary

#3C77CB

secondary

#D1B792

accent

#A147E1

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3C77CB

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

Preview Lab → · Contrast checker → · Palette generator →