#3958B4#3958B4

#3958B4 is a mid, vivid blue. Relative luminance 0.111; OKLCH L 48.8% C 0.150 H 266.8°. Best body text is #FFFFFF at 6.50:1 contrast (WCAG AA passes).

Color values

HEX	#3958B4
RGB	rgb(57, 88, 180)
HSL	hsl(225, 52%, 46%)
HSV	hsv(225, 68%, 71%)
CMYK	cmyk(68.3%, 51.1%, 0%, 29.4%)
CIE-LAB	lab(39.82, 19.70, -52.31)
CIE-LCH	lch(39.82, 55.90, 290.64°)
OKLab	oklab(48.83% -0.0085 -0.1502)
OKLCH	oklch(48.83% 0.15 266.8)
XYZ	xyz(13.4124, 11.1433, 44.6152)
Luminance	0.1114 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3958B4 #B49539

analogous

#3996B4 #3958B4 #5839B4

triadic

#3958B4 #B43958 #58B439

tetradic

#3958B4 #B43996 #B49539 #39B458

square

#3958B4 #B43996 #B49539 #39B458

split-complementary

#3958B4 #B45839 #96B439

monochromatic

#1C2B57 #2A4186 #3958B4 #5E7ACC #8DA0DB

Accessibility & contrast

On white

6.50

#3958B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#3958B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3958B4

6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3958B4	#FFFFFF	#000000	##FFFFFF
##3958B4	1.00	6.50	3.23	6.50
#FFFFFF	6.50	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2164B7

Deuteranopia (green-blind)

#0058B2

Tritanopia (blue-blind)

#006E7D

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3958b4;
/* rgb */ color: rgb(57, 88, 180);
/* oklch */ color: oklch(48.8% 0.150 266.8);

Tailwind

colors: {
  custom: {
    50: '#7e86cb',
    500: '#3958b4',
    950: '#000000',
  },
}

SCSS

$custom: #3958b4;
$custom-light: #7e86cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3958b4",
  "rgb": {
    "r": 57,
    "g": 88,
    "b": 180
  },
  "hsl": {
    "h": 224.878,
    "s": 51.899,
    "l": 46.471
  },
  "oklch": {
    "l": 0.48833,
    "c": 0.1504,
    "h": 266.8
  },
  "luminance": 0.11145
}

Semantic roles & 50–950 ramp

primary

#3958B4

secondary

#C5B583

accent

#B74CDB

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3958B4

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

Preview Lab → · Contrast checker → · Palette generator →