#3B77CC#3B77CC

#3B77CC is a mid, vivid blue. Relative luminance 0.185; OKLCH L 57.2% C 0.146 H 257.5°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#3B77CC
RGB	rgb(59, 119, 204)
HSL	hsl(215, 59%, 52%)
HSV	hsv(215, 71%, 80%)
CMYK	cmyk(71.1%, 41.7%, 0%, 20%)
CIE-LAB	lab(50.07, 9.06, -49.74)
CIE-LCH	lch(50.07, 50.56, 280.32°)
OKLab	oklab(57.21% -0.0314 -0.1421)
OKLCH	oklch(57.21% 0.146 257.5)
XYZ	xyz(19.2956, 18.4810, 59.6653)
Luminance	0.1848 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B77CC #CC903B

analogous

#3BC0CC #3B77CC #483BCC

triadic

#3B77CC #CC3B77 #77CC3B

tetradic

#3B77CC #CC3BC0 #CC903B #3BCC48

square

#3B77CC #CC3BC0 #CC903B #3BCC48

split-complementary

#3B77CC #CC483B #C0CC3B

monochromatic

#1D3F70 #2A5BA0 #3B77CC #6C99D9 #9CBAE5

Accessibility & contrast

On white

4.47

#3B77CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#3B77CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3B77CC

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B77CC	#FFFFFF	#000000	##000000
##3B77CC	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)

#4E7ECF

Deuteranopia (green-blind)

#3671CA

Tritanopia (blue-blind)

#008B97

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3b77cc;
/* rgb */ color: rgb(59, 119, 204);
/* oklch */ color: oklch(57.2% 0.146 257.5);

Tailwind

colors: {
  custom: {
    50: '#829ddc',
    500: '#3b77cc',
    950: '#000000',
  },
}

SCSS

$custom: #3b77cc;
$custom-light: #829ddc;
$custom-dark: #000000;

JSON

{
  "hex": "#3b77cc",
  "rgb": {
    "r": 59,
    "g": 119,
    "b": 204
  },
  "hsl": {
    "h": 215.172,
    "s": 58.704,
    "l": 51.569
  },
  "oklch": {
    "l": 0.57211,
    "c": 0.14551,
    "h": 257.5
  },
  "luminance": 0.18483
}

Semantic roles & 50–950 ramp

primary

#3B77CC

secondary

#D1B792

accent

#A146E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3B77CC

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

Preview Lab → · Contrast checker → · Palette generator →