#3B7BDD#3B7BDD

#3B7BDD is a mid, vivid blue. Relative luminance 0.203; OKLCH L 59.2% C 0.163 H 258.8°. Best body text is #000000 at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#3B7BDD
RGB	rgb(59, 123, 221)
HSL	hsl(216, 70%, 55%)
HSV	hsv(216, 73%, 87%)
CMYK	cmyk(73.3%, 44.3%, 0%, 13.3%)
CIE-LAB	lab(52.19, 12.76, -55.99)
CIE-LCH	lch(52.19, 57.43, 282.84°)
OKLab	oklab(59.17% -0.0317 -0.1604)
OKLCH	oklch(59.17% 0.163 258.8)
XYZ	xyz(21.9330, 20.3137, 71.1576)
Luminance	0.2032 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B7BDD #DD9D3B

analogous

#3BCCDD #3B7BDD #4C3BDD

triadic

#3B7BDD #DD3B7B #7BDD3B

tetradic

#3B7BDD #DD3BCC #DD9D3B #3BDD4C

square

#3B7BDD #DD3BCC #DD9D3B #3BDD4C

split-complementary

#3B7BDD #DD4C3B #CCDD3B

monochromatic

#174386 #205DBA #3B7BDD #6F9EE6 #A3C1EF

Accessibility & contrast

On white

4.15

#3B7BDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.06

#3B7BDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3B7BDD

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B7BDD	#FFFFFF	#000000	##000000
##3B7BDD	1.00	4.15	5.06	5.06
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.06	21.00	1.00	1.00
##000000	5.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4984E1

Deuteranopia (green-blind)

#2976DB

Tritanopia (blue-blind)

#0092A1

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3b7bdd;
/* rgb */ color: rgb(59, 123, 221);
/* oklch */ color: oklch(59.2% 0.163 258.8);

Tailwind

colors: {
  custom: {
    50: '#85a0e8',
    500: '#3b7bdd',
    950: '#000000',
  },
}

SCSS

$custom: #3b7bdd;
$custom-light: #85a0e8;
$custom-dark: #000000;

JSON

{
  "hex": "#3b7bdd",
  "rgb": {
    "r": 59,
    "g": 123,
    "b": 221
  },
  "hsl": {
    "h": 216.296,
    "s": 70.435,
    "l": 54.902
  },
  "oklch": {
    "l": 0.59169,
    "c": 0.16348,
    "h": 258.8
  },
  "luminance": 0.20316
}

Semantic roles & 50–950 ramp

primary

#3B7BDD

secondary

#DCC198

accent

#A73BED

background

#F8F9FE

surface

#F0F2FD

border

#CBCCD5

text

#0D0E16

muted

#7D7E84

Preview Lab

Preview with #3B7BDD

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

Preview Lab → · Contrast checker → · Palette generator →