#3B6BB5#3B6BB5

#3B6BB5 is a mid, vivid blue. Relative luminance 0.148; OKLCH L 53.1% C 0.128 H 258.8°. Best body text is #FFFFFF at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#3B6BB5
RGB	rgb(59, 107, 181)
HSL	hsl(216, 51%, 47%)
HSV	hsv(216, 67%, 71%)
CMYK	cmyk(67.4%, 40.9%, 0%, 29%)
CIE-LAB	lab(45.33, 8.22, -44.05)
CIE-LCH	lch(45.33, 44.81, 280.56°)
OKLab	oklab(53.11% -0.0248 -0.1256)
OKLCH	oklch(53.11% 0.128 258.8)
XYZ	xyz(15.3988, 14.7799, 45.7484)
Luminance	0.1478 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B6BB5 #B5853B

analogous

#3BA8B5 #3B6BB5 #483BB5

triadic

#3B6BB5 #B53B6B #6BB53B

tetradic

#3B6BB5 #B53BA8 #B5853B #3BB548

square

#3B6BB5 #B53BA8 #B5853B #3BB548

split-complementary

#3B6BB5 #B5483B #A8B53B

monochromatic

#1D3459 #2C5087 #3B6BB5 #628BCC #90ADDB

Accessibility & contrast

On white

5.31

#3B6BB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.96

#3B6BB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B6BB5

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B6BB5	#FFFFFF	#000000	##FFFFFF
##3B6BB5	1.00	5.31	3.96	5.31
#FFFFFF	5.31	1.00	21.00	1.00
#000000	3.96	21.00	1.00	21.00
##FFFFFF	5.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4971B8

Deuteranopia (green-blind)

#3666B3

Tritanopia (blue-blind)

#007C87

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #3b6bb5;
/* rgb */ color: rgb(59, 107, 181);
/* oklch */ color: oklch(53.1% 0.128 258.8);

Tailwind

colors: {
  custom: {
    50: '#7e94cb',
    500: '#3b6bb5',
    950: '#000000',
  },
}

SCSS

$custom: #3b6bb5;
$custom-light: #7e94cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3b6bb5",
  "rgb": {
    "r": 59,
    "g": 107,
    "b": 181
  },
  "hsl": {
    "h": 216.393,
    "s": 50.833,
    "l": 47.059
  },
  "oklch": {
    "l": 0.53108,
    "c": 0.12799,
    "h": 258.8
  },
  "luminance": 0.14781
}

Semantic roles & 50–950 ramp

primary

#3B6BB5

secondary

#C6AD86

accent

#A34DDA

background

#F8F9FC

surface

#EFF1F8

border

#CACBD1

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #3B6BB5

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

Preview Lab → · Contrast checker → · Palette generator →