#3B6BBB#3B6BBB

#3B6BBB is a mid, vivid blue. Relative luminance 0.150; OKLCH L 53.5% C 0.136 H 260.0°. Best body text is #FFFFFF at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#3B6BBB
RGB	rgb(59, 107, 187)
HSL	hsl(218, 52%, 48%)
HSV	hsv(218, 68%, 73%)
CMYK	cmyk(68.4%, 42.8%, 0%, 26.7%)
CIE-LAB	lab(45.68, 10.39, -46.99)
CIE-LCH	lch(45.68, 48.12, 282.47°)
OKLab	oklab(53.49% -0.0236 -0.1342)
OKLCH	oklch(53.49% 0.136 260)
XYZ	xyz(16.0278, 15.0314, 49.0608)
Luminance	0.1503 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B6BBB #BB8B3B

analogous

#3BABBB #3B6BBB #4B3BBB

triadic

#3B6BBB #BB3B6B #6BBB3B

tetradic

#3B6BBB #BB3BAB #BB8B3B #3BBB4B

square

#3B6BBB #BB3BAB #BB8B3B #3BBB4B

split-complementary

#3B6BBB #BB4B3B #ABBB3B

monochromatic

#1E365E #2C508C #3B6BBB #658CCE #93AFDD

Accessibility & contrast

On white

5.24

#3B6BBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.01

#3B6BBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B6BBB

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B6BBB	#FFFFFF	#000000	##FFFFFF
##3B6BBB	1.00	5.24	4.01	5.24
#FFFFFF	5.24	1.00	21.00	1.00
#000000	4.01	21.00	1.00	21.00
##FFFFFF	5.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4573BE

Deuteranopia (green-blind)

#3067B9

Tritanopia (blue-blind)

#007D8A

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #3b6bbb;
/* rgb */ color: rgb(59, 107, 187);
/* oklch */ color: oklch(53.5% 0.136 260.0);

Tailwind

colors: {
  custom: {
    50: '#7f94d0',
    500: '#3b6bbb',
    950: '#000000',
  },
}

SCSS

$custom: #3b6bbb;
$custom-light: #7f94d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3b6bbb",
  "rgb": {
    "r": 59,
    "g": 107,
    "b": 187
  },
  "hsl": {
    "h": 217.5,
    "s": 52.033,
    "l": 48.235
  },
  "oklch": {
    "l": 0.53488,
    "c": 0.13624,
    "h": 260
  },
  "luminance": 0.15033
}

Semantic roles & 50–950 ramp

primary

#3B6BBB

secondary

#C8B18A

accent

#A64CDB

background

#F8F9FC

surface

#EFF1F9

border

#CACBD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #3B6BBB

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

Preview Lab → · Contrast checker → · Palette generator →