#3A7BDF#3A7BDF

#3A7BDF is a mid, vivid blue. Relative luminance 0.204; OKLCH L 59.3% C 0.166 H 258.9°. Best body text is #000000 at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#3A7BDF
RGB	rgb(58, 123, 223)
HSL	hsl(216, 72%, 55%)
HSV	hsv(216, 74%, 87%)
CMYK	cmyk(74%, 44.8%, 0%, 12.5%)
CIE-LAB	lab(52.28, 13.36, -56.98)
CIE-LCH	lch(52.28, 58.53, 283.20°)
OKLab	oklab(59.27% -0.032 -0.1633)
OKLCH	oklch(59.27% 0.166 258.9)
XYZ	xyz(22.1423, 20.3907, 72.5666)
Luminance	0.2039 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A7BDF #DF9E3A

analogous

#3ACDDF #3A7BDF #4C3ADF

triadic

#3A7BDF #DF3A7B #7BDF3A

tetradic

#3A7BDF #DF3ACD #DF9E3A #3ADF4C

square

#3A7BDF #DF3ACD #DF9E3A #3ADF4C

split-complementary

#3A7BDF #DF4C3A #CDDF3A

monochromatic

#164388 #1F5DBD #3A7BDF #6F9EE8 #A3C2F0

Accessibility & contrast

On white

4.13

#3A7BDF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.08

#3A7BDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3A7BDF

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A7BDF	#FFFFFF	#000000	##000000
##3A7BDF	1.00	4.13	5.08	5.08
#FFFFFF	4.13	1.00	21.00	21.00
#000000	5.08	21.00	1.00	1.00
##000000	5.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4785E3

Deuteranopia (green-blind)

#2476DD

Tritanopia (blue-blind)

#0093A2

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3a7bdf;
/* rgb */ color: rgb(58, 123, 223);
/* oklch */ color: oklch(59.3% 0.166 258.9);

Tailwind

colors: {
  custom: {
    50: '#85a0e9',
    500: '#3a7bdf',
    950: '#000000',
  },
}

SCSS

$custom: #3a7bdf;
$custom-light: #85a0e9;
$custom-dark: #000000;

JSON

{
  "hex": "#3a7bdf",
  "rgb": {
    "r": 58,
    "g": 123,
    "b": 223
  },
  "hsl": {
    "h": 216.364,
    "s": 72.052,
    "l": 55.098
  },
  "oklch": {
    "l": 0.59265,
    "c": 0.1664,
    "h": 258.9
  },
  "luminance": 0.20393
}

Semantic roles & 50–950 ramp

primary

#3A7BDF

secondary

#DDC298

accent

#A739EF

background

#F8F9FE

surface

#F0F2FD

border

#CBCCD5

text

#0D0E16

muted

#7D7E84

Preview Lab

Preview with #3A7BDF

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

Preview Lab → · Contrast checker → · Palette generator →