#3958B2#3958B2

#3958B2 is a mid, vivid blue. Relative luminance 0.111; OKLCH L 48.7% C 0.148 H 266.6°. Best body text is #FFFFFF at 6.54:1 contrast (WCAG AA passes).

Color values

HEX	#3958B2
RGB	rgb(57, 88, 178)
HSL	hsl(225, 51%, 46%)
HSV	hsv(225, 68%, 70%)
CMYK	cmyk(68%, 50.6%, 0%, 30.2%)
CIE-LAB	lab(39.69, 18.97, -51.35)
CIE-LCH	lch(39.69, 54.74, 290.28°)
OKLab	oklab(48.69% -0.0087 -0.1473)
OKLCH	oklch(48.69% 0.148 266.6)
XYZ	xyz(13.2102, 11.0624, 43.5499)
Luminance	0.1106 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3958B2 #B29339

analogous

#3994B2 #3958B2 #5639B2

triadic

#3958B2 #B23958 #58B239

tetradic

#3958B2 #B23994 #B29339 #39B256

square

#3958B2 #B23994 #B29339 #39B256

split-complementary

#3958B2 #B25639 #94B239

monochromatic

#1B2A55 #2A4184 #3958B2 #5D79CB #8BA0DA

Accessibility & contrast

On white

6.54

#3958B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#3958B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3958B2

6.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3958B2	#FFFFFF	#000000	##FFFFFF
##3958B2	1.00	6.54	3.21	6.54
#FFFFFF	6.54	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2463B5

Deuteranopia (green-blind)

#0058B0

Tritanopia (blue-blind)

#006D7C

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3958b2;
/* rgb */ color: rgb(57, 88, 178);
/* oklch */ color: oklch(48.7% 0.148 266.6);

Tailwind

colors: {
  custom: {
    50: '#7d86ca',
    500: '#3958b2',
    950: '#000000',
  },
}

SCSS

$custom: #3958b2;
$custom-light: #7d86ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3958b2",
  "rgb": {
    "r": 57,
    "g": 88,
    "b": 178
  },
  "hsl": {
    "h": 224.628,
    "s": 51.489,
    "l": 46.078
  },
  "oklch": {
    "l": 0.48687,
    "c": 0.1476,
    "h": 266.6
  },
  "luminance": 0.11064
}

Semantic roles & 50–950 ramp

primary

#3958B2

secondary

#C4B382

accent

#B74DDB

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3958B2

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

Preview Lab → · Contrast checker → · Palette generator →