#3B7DDD#3B7DDD

#3B7DDD is a mid, vivid blue. Relative luminance 0.208; OKLCH L 59.6% C 0.161 H 258.0°. Best body text is #000000 at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#3B7DDD
RGB	rgb(59, 125, 221)
HSL	hsl(216, 70%, 55%)
HSV	hsv(216, 73%, 87%)
CMYK	cmyk(73.3%, 43.4%, 0%, 13.3%)
CIE-LAB	lab(52.75, 11.53, -55.10)
CIE-LCH	lch(52.75, 56.29, 281.81°)
OKLab	oklab(59.6% -0.0334 -0.1577)
OKLCH	oklch(59.6% 0.161 258)
XYZ	xyz(22.1836, 20.8150, 71.2412)
Luminance	0.2082 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B7DDD #DD9B3B

analogous

#3BCEDD #3B7DDD #4A3BDD

triadic

#3B7DDD #DD3B7D #7DDD3B

tetradic

#3B7DDD #DD3BCE #DD9B3B #3BDD4A

square

#3B7DDD #DD3BCE #DD9B3B #3BDD4A

split-complementary

#3B7DDD #DD4A3B #CEDD3B

monochromatic

#174586 #205FBA #3B7DDD #6FA0E6 #A3C2EF

Accessibility & contrast

On white

4.07

#3B7DDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.16

#3B7DDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3B7DDD

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B7DDD	#FFFFFF	#000000	##000000
##3B7DDD	1.00	4.07	5.16	5.16
#FFFFFF	4.07	1.00	21.00	21.00
#000000	5.16	21.00	1.00	1.00
##000000	5.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D86E1

Deuteranopia (green-blind)

#2E77DB

Tritanopia (blue-blind)

#0094A2

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #3b7ddd;
/* rgb */ color: rgb(59, 125, 221);
/* oklch */ color: oklch(59.6% 0.161 258.0);

Tailwind

colors: {
  custom: {
    50: '#85a2e8',
    500: '#3b7ddd',
    950: '#000000',
  },
}

SCSS

$custom: #3b7ddd;
$custom-light: #85a2e8;
$custom-dark: #000000;

JSON

{
  "hex": "#3b7ddd",
  "rgb": {
    "r": 59,
    "g": 125,
    "b": 221
  },
  "hsl": {
    "h": 215.556,
    "s": 70.435,
    "l": 54.902
  },
  "oklch": {
    "l": 0.59599,
    "c": 0.16122,
    "h": 258
  },
  "luminance": 0.20817
}

Semantic roles & 50–950 ramp

primary

#3B7DDD

secondary

#DCC098

accent

#A43BED

background

#F8F9FE

surface

#F0F2FD

border

#CBCCD5

text

#0D0E16

muted

#7D7E84

Preview Lab

Preview with #3B7DDD

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

Preview Lab → · Contrast checker → · Palette generator →