#3A74BB#3A74BB

#3A74BB is a mid, vivid cyan. Relative luminance 0.170; OKLCH L 55.5% C 0.127 H 254.8°. Best body text is #FFFFFF at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#3A74BB
RGB	rgb(58, 116, 187)
HSL	hsl(213, 53%, 48%)
HSV	hsv(213, 69%, 73%)
CMYK	cmyk(69%, 38%, 0%, 26.7%)
CIE-LAB	lab(48.23, 4.62, -42.93)
CIE-LCH	lch(48.23, 43.17, 276.14°)
OKLab	oklab(55.46% -0.0331 -0.1221)
OKLCH	oklch(55.46% 0.127 254.8)
XYZ	xyz(16.9567, 16.9764, 49.3872)
Luminance	0.1698 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A74BB #BB813A

analogous

#3AB4BB #3A74BB #403ABB

triadic

#3A74BB #BB3A74 #74BB3A

tetradic

#3A74BB #BB3AB4 #BB813A #3ABB40

square

#3A74BB #BB3AB4 #BB813A #3ABB40

split-complementary

#3A74BB #BB403A #B4BB3A

monochromatic

#1D3A5E #2C578C #3A74BB #6394CF #92B4DD

Accessibility & contrast

On white

4.78

#3A74BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#3A74BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A74BB

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A74BB	#FFFFFF	#000000	##FFFFFF
##3A74BB	1.00	4.78	4.40	4.78
#FFFFFF	4.78	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5479BE

Deuteranopia (green-blind)

#416DBA

Tritanopia (blue-blind)

#00848E

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3a74bb;
/* rgb */ color: rgb(58, 116, 187);
/* oklch */ color: oklch(55.5% 0.127 254.8);

Tailwind

colors: {
  custom: {
    50: '#7f9bd0',
    500: '#3a74bb',
    950: '#000000',
  },
}

SCSS

$custom: #3a74bb;
$custom-light: #7f9bd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3a74bb",
  "rgb": {
    "r": 58,
    "g": 116,
    "b": 187
  },
  "hsl": {
    "h": 213.023,
    "s": 52.653,
    "l": 48.039
  },
  "oklch": {
    "l": 0.5546,
    "c": 0.12655,
    "h": 254.8
  },
  "luminance": 0.16978
}

Semantic roles & 50–950 ramp

primary

#3A74BB

secondary

#C8AC88

accent

#9B4CDC

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3A74BB

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

Preview Lab → · Contrast checker → · Palette generator →