#3958B3#3958B3

#3958B3 is a mid, vivid blue. Relative luminance 0.111; OKLCH L 48.8% C 0.149 H 266.7°. Best body text is #FFFFFF at 6.52:1 contrast (WCAG AA passes).

Color values

HEX	#3958B3
RGB	rgb(57, 88, 179)
HSL	hsl(225, 52%, 46%)
HSV	hsv(225, 68%, 70%)
CMYK	cmyk(68.2%, 50.8%, 0%, 29.8%)
CIE-LAB	lab(39.75, 19.34, -51.83)
CIE-LCH	lch(39.75, 55.32, 290.46°)
OKLab	oklab(48.76% -0.0086 -0.1487)
OKLCH	oklch(48.76% 0.149 266.7)
XYZ	xyz(13.3109, 11.1027, 44.0806)
Luminance	0.1110 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3958B3 #B39439

analogous

#3995B3 #3958B3 #5739B3

triadic

#3958B3 #B33958 #58B339

tetradic

#3958B3 #B33995 #B39439 #39B357

square

#3958B3 #B33995 #B39439 #39B357

split-complementary

#3958B3 #B35739 #95B339

monochromatic

#1B2A56 #2A4185 #3958B3 #5E7ACC #8CA0DA

Accessibility & contrast

On white

6.52

#3958B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#3958B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3958B3

6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3958B3	#FFFFFF	#000000	##FFFFFF
##3958B3	1.00	6.52	3.22	6.52
#FFFFFF	6.52	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2364B6

Deuteranopia (green-blind)

#0058B1

Tritanopia (blue-blind)

#006D7D

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3958b3;
/* rgb */ color: rgb(57, 88, 179);
/* oklch */ color: oklch(48.8% 0.149 266.7);

Tailwind

colors: {
  custom: {
    50: '#7d86ca',
    500: '#3958b3',
    950: '#000000',
  },
}

SCSS

$custom: #3958b3;
$custom-light: #7d86ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3958b3",
  "rgb": {
    "r": 57,
    "g": 88,
    "b": 179
  },
  "hsl": {
    "h": 224.754,
    "s": 51.695,
    "l": 46.275
  },
  "oklch": {
    "l": 0.4876,
    "c": 0.149,
    "h": 266.7
  },
  "luminance": 0.11104
}

Semantic roles & 50–950 ramp

primary

#3958B3

secondary

#C5B483

accent

#B74DDB

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3958B3

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

Preview Lab → · Contrast checker → · Palette generator →