#3957AE#3957AE

#3957AE is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.2% C 0.143 H 266.7°. Best body text is #FFFFFF at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#3957AE
RGB	rgb(57, 87, 174)
HSL	hsl(225, 51%, 45%)
HSV	hsv(225, 67%, 68%)
CMYK	cmyk(67.2%, 50%, 0%, 31.8%)
CIE-LAB	lab(39.14, 18.16, -49.87)
CIE-LCH	lch(39.14, 53.07, 290.01°)
OKLab	oklab(48.19% -0.0083 -0.143)
OKLCH	oklch(48.19% 0.143 266.7)
XYZ	xyz(12.7329, 10.7410, 41.4384)
Luminance	0.1074 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3957AE #AE9039

analogous

#3992AE #3957AE #5539AE

triadic

#3957AE #AE3957 #57AE39

tetradic

#3957AE #AE3992 #AE9039 #39AE55

square

#3957AE #AE3992 #AE9039 #39AE55

split-complementary

#3957AE #AE5539 #92AE39

monochromatic

#1B2952 #2A4080 #3957AE #5B77C9 #899DD8

Accessibility & contrast

On white

6.67

#3957AE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#3957AE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3957AE

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3957AE	#FFFFFF	#000000	##FFFFFF
##3957AE	1.00	6.67	3.15	6.67
#FFFFFF	6.67	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2762B1

Deuteranopia (green-blind)

#0257AC

Tritanopia (blue-blind)

#006B7A

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3957ae;
/* rgb */ color: rgb(57, 87, 174);
/* oklch */ color: oklch(48.2% 0.143 266.7);

Tailwind

colors: {
  custom: {
    50: '#7c85c7',
    500: '#3957ae',
    950: '#000000',
  },
}

SCSS

$custom: #3957ae;
$custom-light: #7c85c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3957ae",
  "rgb": {
    "r": 57,
    "g": 87,
    "b": 174
  },
  "hsl": {
    "h": 224.615,
    "s": 50.649,
    "l": 45.294
  },
  "oklch": {
    "l": 0.48187,
    "c": 0.14323,
    "h": 266.7
  },
  "luminance": 0.10742
}

Semantic roles & 50–950 ramp

primary

#3957AE

secondary

#C3B280

accent

#B64EDA

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3957AE

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

Preview Lab → · Contrast checker → · Palette generator →