#3A7CDF#3A7CDF

#3A7CDF is a mid, vivid blue. Relative luminance 0.206; OKLCH L 59.5% C 0.165 H 258.5°. Best body text is #000000 at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#3A7CDF
RGB	rgb(58, 124, 223)
HSL	hsl(216, 72%, 55%)
HSV	hsv(216, 74%, 87%)
CMYK	cmyk(74%, 44.4%, 0%, 12.5%)
CIE-LAB	lab(52.55, 12.74, -56.54)
CIE-LCH	lch(52.55, 57.95, 282.70°)
OKLab	oklab(59.48% -0.0328 -0.162)
OKLCH	oklch(59.48% 0.165 258.5)
XYZ	xyz(22.2670, 20.6401, 72.6081)
Luminance	0.2064 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A7CDF #DF9D3A

analogous

#3ACEDF #3A7CDF #4B3ADF

triadic

#3A7CDF #DF3A7C #7CDF3A

tetradic

#3A7CDF #DF3ACE #DF9D3A #3ADF4B

square

#3A7CDF #DF3ACE #DF9D3A #3ADF4B

split-complementary

#3A7CDF #DF4B3A #CEDF3A

monochromatic

#164488 #1F5EBD #3A7CDF #6F9FE8 #A3C2F0

Accessibility & contrast

On white

4.09

#3A7CDF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.13

#3A7CDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3A7CDF

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A7CDF	#FFFFFF	#000000	##000000
##3A7CDF	1.00	4.09	5.13	5.13
#FFFFFF	4.09	1.00	21.00	21.00
#000000	5.13	21.00	1.00	1.00
##000000	5.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4986E3

Deuteranopia (green-blind)

#2876DD

Tritanopia (blue-blind)

#0093A3

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3a7cdf;
/* rgb */ color: rgb(58, 124, 223);
/* oklch */ color: oklch(59.5% 0.165 258.5);

Tailwind

colors: {
  custom: {
    50: '#85a1e9',
    500: '#3a7cdf',
    950: '#000000',
  },
}

SCSS

$custom: #3a7cdf;
$custom-light: #85a1e9;
$custom-dark: #000000;

JSON

{
  "hex": "#3a7cdf",
  "rgb": {
    "r": 58,
    "g": 124,
    "b": 223
  },
  "hsl": {
    "h": 216,
    "s": 72.052,
    "l": 55.098
  },
  "oklch": {
    "l": 0.59479,
    "c": 0.16527,
    "h": 258.5
  },
  "luminance": 0.20643
}

Semantic roles & 50–950 ramp

primary

#3A7CDF

secondary

#DDC198

accent

#A639EF

background

#F8F9FE

surface

#F0F2FD

border

#CBCCD5

text

#0D0E16

muted

#7D7E84

Preview Lab

Preview with #3A7CDF

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

Preview Lab → · Contrast checker → · Palette generator →