#3954B3#3954B3

#3954B3 is a mid, vivid blue. Relative luminance 0.105; OKLCH L 47.9% C 0.154 H 268.1°. Best body text is #FFFFFF at 6.79:1 contrast (WCAG AA passes).

Color values

HEX	#3954B3
RGB	rgb(57, 84, 179)
HSL	hsl(227, 52%, 46%)
HSV	hsv(227, 68%, 70%)
CMYK	cmyk(68.2%, 53.1%, 0%, 29.8%)
CIE-LAB	lab(38.66, 21.95, -53.59)
CIE-LCH	lch(38.66, 57.91, 292.27°)
OKLab	oklab(47.93% -0.005 -0.154)
OKLCH	oklch(47.93% 0.154 268.1)
XYZ	xyz(12.9916, 10.4639, 43.9742)
Luminance	0.1047 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3954B3 #B39839

analogous

#3991B3 #3954B3 #5B39B3

triadic

#3954B3 #B33954 #54B339

tetradic

#3954B3 #B33991 #B39839 #39B35B

square

#3954B3 #B33991 #B39839 #39B35B

split-complementary

#3954B3 #B35B39 #91B339

monochromatic

#1B2856 #2A3E85 #3954B3 #5E76CC #8C9DDA

Accessibility & contrast

On white

6.79

#3954B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#3954B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3954B3

6.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3954B3	#FFFFFF	#000000	##FFFFFF
##3954B3	1.00	6.79	3.09	6.79
#FFFFFF	6.79	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1461B6

Deuteranopia (green-blind)

#0056B1

Tritanopia (blue-blind)

#006B7B

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3954b3;
/* rgb */ color: rgb(57, 84, 179);
/* oklch */ color: oklch(47.9% 0.154 268.1);

Tailwind

colors: {
  custom: {
    50: '#7e83ca',
    500: '#3954b3',
    950: '#000000',
  },
}

SCSS

$custom: #3954b3;
$custom-light: #7e83ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3954b3",
  "rgb": {
    "r": 57,
    "g": 84,
    "b": 179
  },
  "hsl": {
    "h": 226.721,
    "s": 51.695,
    "l": 46.275
  },
  "oklch": {
    "l": 0.47934,
    "c": 0.15407,
    "h": 268.1
  },
  "luminance": 0.10465
}

Semantic roles & 50–950 ramp

primary

#3954B3

secondary

#C5B683

accent

#BC4DDB

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3954B3

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

Preview Lab → · Contrast checker → · Palette generator →