#3A5FB0#3A5FB0

#3A5FB0 is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.1% C 0.136 H 263.7°. Best body text is #FFFFFF at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#3A5FB0
RGB	rgb(58, 95, 176)
HSL	hsl(221, 50%, 46%)
HSV	hsv(221, 67%, 69%)
CMYK	cmyk(67%, 46%, 0%, 31%)
CIE-LAB	lab(41.56, 13.87, -47.16)
CIE-LCH	lch(41.56, 49.15, 286.39°)
OKLab	oklab(50.09% -0.0148 -0.1349)
OKLCH	oklch(50.09% 0.136 263.7)
XYZ	xyz(13.6709, 12.2172, 42.7036)
Luminance	0.1222 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A5FB0 #B08B3A

analogous

#3A9AB0 #3A5FB0 #503AB0

triadic

#3A5FB0 #B03A5F #5FB03A

tetradic

#3A5FB0 #B03A9A #B08B3A #3AB050

square

#3A5FB0 #B03A9A #B08B3A #3AB050

split-complementary

#3A5FB0 #B0503A #9AB03A

monochromatic

#1C2D54 #2B4682 #3A5FB0 #5D7FCA #8BA4D9

Accessibility & contrast

On white

6.10

#3A5FB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#3A5FB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A5FB0

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A5FB0	#FFFFFF	#000000	##FFFFFF
##3A5FB0	1.00	6.10	3.44	6.10
#FFFFFF	6.10	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3768B3

Deuteranopia (green-blind)

#215DAE

Tritanopia (blue-blind)

#00727F

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #3a5fb0;
/* rgb */ color: rgb(58, 95, 176);
/* oklch */ color: oklch(50.1% 0.136 263.7);

Tailwind

colors: {
  custom: {
    50: '#7d8bc8',
    500: '#3a5fb0',
    950: '#000000',
  },
}

SCSS

$custom: #3a5fb0;
$custom-light: #7d8bc8;
$custom-dark: #000000;

JSON

{
  "hex": "#3a5fb0",
  "rgb": {
    "r": 58,
    "g": 95,
    "b": 176
  },
  "hsl": {
    "h": 221.186,
    "s": 50.427,
    "l": 45.882
  },
  "oklch": {
    "l": 0.5009,
    "c": 0.13569,
    "h": 263.7
  },
  "luminance": 0.12219
}

Semantic roles & 50–950 ramp

primary

#3A5FB0

secondary

#C3AF82

accent

#AE4EDA

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3A5FB0

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

Preview Lab → · Contrast checker → · Palette generator →