#3954B5#3954B5

#3954B5 is a mid, vivid blue. Relative luminance 0.105; OKLCH L 48.1% C 0.157 H 268.2°. Best body text is #FFFFFF at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#3954B5
RGB	rgb(57, 84, 181)
HSL	hsl(227, 52%, 47%)
HSV	hsv(227, 69%, 71%)
CMYK	cmyk(68.5%, 53.6%, 0%, 29%)
CIE-LAB	lab(38.80, 22.67, -54.54)
CIE-LCH	lch(38.80, 59.06, 292.58°)
OKLab	oklab(48.09% -0.0048 -0.1568)
OKLCH	oklch(48.09% 0.157 268.2)
XYZ	xyz(13.1953, 10.5454, 45.0472)
Luminance	0.1055 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3954B5 #B59A39

analogous

#3992B5 #3954B5 #5C39B5

triadic

#3954B5 #B53954 #54B539

tetradic

#3954B5 #B53992 #B59A39 #39B55C

square

#3954B5 #B53992 #B59A39 #39B55C

split-complementary

#3954B5 #B55C39 #92B539

monochromatic

#1C2958 #2A3E86 #3954B5 #5F77CD #8D9EDB

Accessibility & contrast

On white

6.75

#3954B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#3954B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3954B5

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3954B5	#FFFFFF	#000000	##FFFFFF
##3954B5	1.00	6.75	3.11	6.75
#FFFFFF	6.75	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F61B8

Deuteranopia (green-blind)

#0056B3

Tritanopia (blue-blind)

#006B7C

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3954b5;
/* rgb */ color: rgb(57, 84, 181);
/* oklch */ color: oklch(48.1% 0.157 268.2);

Tailwind

colors: {
  custom: {
    50: '#7e83cc',
    500: '#3954b5',
    950: '#000000',
  },
}

SCSS

$custom: #3954b5;
$custom-light: #7e83cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3954b5",
  "rgb": {
    "r": 57,
    "g": 84,
    "b": 181
  },
  "hsl": {
    "h": 226.935,
    "s": 52.101,
    "l": 46.667
  },
  "oklch": {
    "l": 0.48086,
    "c": 0.15685,
    "h": 268.2
  },
  "luminance": 0.10547
}

Semantic roles & 50–950 ramp

primary

#3954B5

secondary

#C6B784

accent

#BC4CDC

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3954B5

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

Preview Lab → · Contrast checker → · Palette generator →