#3A7DDF#3A7DDF

#3A7DDF is a mid, vivid blue. Relative luminance 0.209; OKLCH L 59.7% C 0.164 H 258.2°. Best body text is #000000 at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#3A7DDF
RGB	rgb(58, 125, 223)
HSL	hsl(216, 72%, 55%)
HSV	hsv(216, 74%, 87%)
CMYK	cmyk(74%, 43.9%, 0%, 12.5%)
CIE-LAB	lab(52.83, 12.13, -56.09)
CIE-LCH	lch(52.83, 57.39, 282.20°)
OKLab	oklab(59.69% -0.0337 -0.1606)
OKLCH	oklch(59.69% 0.164 258.2)
XYZ	xyz(22.3930, 20.8920, 72.6501)
Luminance	0.2089 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A7DDF #DF9C3A

analogous

#3AD0DF #3A7DDF #493ADF

triadic

#3A7DDF #DF3A7D #7DDF3A

tetradic

#3A7DDF #DF3AD0 #DF9C3A #3ADF49

square

#3A7DDF #DF3AD0 #DF9C3A #3ADF49

split-complementary

#3A7DDF #DF493A #D0DF3A

monochromatic

#164588 #1F5FBD #3A7DDF #6FA0E8 #A3C2F0

Accessibility & contrast

On white

4.05

#3A7DDF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.18

#3A7DDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3A7DDF

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A7DDF	#FFFFFF	#000000	##000000
##3A7DDF	1.00	4.05	5.18	5.18
#FFFFFF	4.05	1.00	21.00	21.00
#000000	5.18	21.00	1.00	1.00
##000000	5.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B86E3

Deuteranopia (green-blind)

#2B77DD

Tritanopia (blue-blind)

#0094A3

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #3a7ddf;
/* rgb */ color: rgb(58, 125, 223);
/* oklch */ color: oklch(59.7% 0.164 258.2);

Tailwind

colors: {
  custom: {
    50: '#85a2e9',
    500: '#3a7ddf',
    950: '#000000',
  },
}

SCSS

$custom: #3a7ddf;
$custom-light: #85a2e9;
$custom-dark: #000000;

JSON

{
  "hex": "#3a7ddf",
  "rgb": {
    "r": 58,
    "g": 125,
    "b": 223
  },
  "hsl": {
    "h": 215.636,
    "s": 72.052,
    "l": 55.098
  },
  "oklch": {
    "l": 0.59693,
    "c": 0.16414,
    "h": 258.2
  },
  "luminance": 0.20894
}

Semantic roles & 50–950 ramp

primary

#3A7DDF

secondary

#DDC198

accent

#A539EF

background

#F8F9FE

surface

#F0F2FD

border

#CBCCD5

text

#0D0E16

muted

#7D7E84

Preview Lab

Preview with #3A7DDF

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

Preview Lab → · Contrast checker → · Palette generator →