#3A5BB1#3A5BB1

#3A5BB1 is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.3% C 0.142 H 265.7°. Best body text is #FFFFFF at 6.34:1 contrast (WCAG AA passes).

Color values

HEX	#3A5BB1
RGB	rgb(58, 91, 177)
HSL	hsl(223, 51%, 46%)
HSV	hsv(223, 67%, 69%)
CMYK	cmyk(67.2%, 48.6%, 0%, 30.6%)
CIE-LAB	lab(40.50, 16.82, -49.45)
CIE-LCH	lch(40.50, 52.23, 288.79°)
OKLab	oklab(49.3% -0.0108 -0.1417)
OKLCH	oklch(49.3% 0.142 265.7)
XYZ	xyz(13.4191, 11.5547, 43.1096)
Luminance	0.1156 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A5BB1 #B1903A

analogous

#3A96B1 #3A5BB1 #543AB1

triadic

#3A5BB1 #B13A5B #5BB13A

tetradic

#3A5BB1 #B13A96 #B1903A #3AB154

square

#3A5BB1 #B13A96 #B1903A #3AB154

split-complementary

#3A5BB1 #B1543A #96B13A

monochromatic

#1C2C55 #2B4383 #3A5BB1 #5E7CCA #8CA1D9

Accessibility & contrast

On white

6.34

#3A5BB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#3A5BB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A5BB1

6.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A5BB1	#FFFFFF	#000000	##FFFFFF
##3A5BB1	1.00	6.34	3.31	6.34
#FFFFFF	6.34	1.00	21.00	1.00
#000000	3.31	21.00	1.00	21.00
##FFFFFF	6.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D65B4

Deuteranopia (green-blind)

#105AAF

Tritanopia (blue-blind)

#006F7D

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3a5bb1;
/* rgb */ color: rgb(58, 91, 177);
/* oklch */ color: oklch(49.3% 0.142 265.7);

Tailwind

colors: {
  custom: {
    50: '#7d88c9',
    500: '#3a5bb1',
    950: '#000000',
  },
}

SCSS

$custom: #3a5bb1;
$custom-light: #7d88c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3a5bb1",
  "rgb": {
    "r": 58,
    "g": 91,
    "b": 177
  },
  "hsl": {
    "h": 223.361,
    "s": 50.638,
    "l": 46.078
  },
  "oklch": {
    "l": 0.49299,
    "c": 0.14208,
    "h": 265.7
  },
  "luminance": 0.11556
}

Semantic roles & 50–950 ramp

primary

#3A5BB1

secondary

#C4B283

accent

#B34EDA

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3A5BB1

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

Preview Lab → · Contrast checker → · Palette generator →