#3B77BC#3B77BC

#3B77BC is a mid, vivid cyan. Relative luminance 0.178; OKLCH L 56.2% C 0.124 H 253.6°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#3B77BC
RGB	rgb(59, 119, 188)
HSL	hsl(212, 52%, 48%)
HSV	hsv(212, 69%, 74%)
CMYK	cmyk(68.6%, 36.7%, 0%, 26.3%)
CIE-LAB	lab(49.19, 3.30, -41.97)
CIE-LCH	lch(49.19, 42.10, 274.49°)
OKLab	oklab(56.24% -0.0351 -0.1193)
OKLCH	oklch(56.24% 0.124 253.6)
XYZ	xyz(17.4742, 17.7525, 50.0729)
Luminance	0.1775 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B77BC #BC803B

analogous

#3BB7BC #3B77BC #3F3BBC

triadic

#3B77BC #BC3B77 #77BC3B

tetradic

#3B77BC #BC3BB7 #BC803B #3BBC3F

square

#3B77BC #BC3BB7 #BC803B #3BBC3F

split-complementary

#3B77BC #BC3F3B #B7BC3B

monochromatic

#1E3C5F #2C5A8D #3B77BC #6596CF #94B6DD

Accessibility & contrast

On white

4.61

#3B77BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#3B77BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3B77BC

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B77BC	#FFFFFF	#000000	##FFFFFF
##3B77BC	1.00	4.61	4.55	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.55	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#587CBF

Deuteranopia (green-blind)

#456FBB

Tritanopia (blue-blind)

#008790

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3b77bc;
/* rgb */ color: rgb(59, 119, 188);
/* oklch */ color: oklch(56.2% 0.124 253.6);

Tailwind

colors: {
  custom: {
    50: '#7f9dd0',
    500: '#3b77bc',
    950: '#000000',
  },
}

SCSS

$custom: #3b77bc;
$custom-light: #7f9dd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3b77bc",
  "rgb": {
    "r": 59,
    "g": 119,
    "b": 188
  },
  "hsl": {
    "h": 212.093,
    "s": 52.227,
    "l": 48.431
  },
  "oklch": {
    "l": 0.5624,
    "c": 0.12435,
    "h": 253.6
  },
  "luminance": 0.17754
}

Semantic roles & 50–950 ramp

primary

#3B77BC

secondary

#C9AC8A

accent

#994CDC

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3B77BC

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

Preview Lab → · Contrast checker → · Palette generator →