#3A5BB5#3A5BB5

#3A5BB5 is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.6% C 0.148 H 266.0°. Best body text is #FFFFFF at 6.28:1 contrast (WCAG AA passes).

Color values

HEX	#3A5BB5
RGB	rgb(58, 91, 181)
HSL	hsl(224, 51%, 47%)
HSV	hsv(224, 68%, 71%)
CMYK	cmyk(68%, 49.7%, 0%, 29%)
CIE-LAB	lab(40.76, 18.28, -51.37)
CIE-LCH	lch(40.76, 54.53, 289.59°)
OKLab	oklab(49.58% -0.0102 -0.1473)
OKLCH	oklch(49.58% 0.148 266)
XYZ	xyz(13.8236, 11.7166, 45.2401)
Luminance	0.1172 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A5BB5 #B5943A

analogous

#3A99B5 #3A5BB5 #563AB5

triadic

#3A5BB5 #B53A5B #5BB53A

tetradic

#3A5BB5 #B53A99 #B5943A #3AB556

square

#3A5BB5 #B53A99 #B5943A #3AB556

split-complementary

#3A5BB5 #B5563A #99B53A

monochromatic

#1C2C58 #2B4487 #3A5BB5 #607DCC #8EA3DB

Accessibility & contrast

On white

6.28

#3A5BB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#3A5BB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A5BB5

6.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A5BB5	#FFFFFF	#000000	##FFFFFF
##3A5BB5	1.00	6.28	3.34	6.28
#FFFFFF	6.28	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2966B8

Deuteranopia (green-blind)

#015BB3

Tritanopia (blue-blind)

#00707F

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #3a5bb5;
/* rgb */ color: rgb(58, 91, 181);
/* oklch */ color: oklch(49.6% 0.148 266.0);

Tailwind

colors: {
  custom: {
    50: '#7e88cc',
    500: '#3a5bb5',
    950: '#000000',
  },
}

SCSS

$custom: #3a5bb5;
$custom-light: #7e88cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3a5bb5",
  "rgb": {
    "r": 58,
    "g": 91,
    "b": 181
  },
  "hsl": {
    "h": 223.902,
    "s": 51.464,
    "l": 46.863
  },
  "oklch": {
    "l": 0.49584,
    "c": 0.1477,
    "h": 266
  },
  "luminance": 0.11718
}

Semantic roles & 50–950 ramp

primary

#3A5BB5

secondary

#C6B485

accent

#B54DDB

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3A5BB5

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

Preview Lab → · Contrast checker → · Palette generator →