#3951DB#3951DB

#3951DB is a mid, highly saturated blue. Relative luminance 0.119; OKLCH L 50.6% C 0.211 H 269.5°. Best body text is #FFFFFF at 6.22:1 contrast (WCAG AA passes).

Color values

HEX	#3951DB
RGB	rgb(57, 81, 219)
HSL	hsl(231, 69%, 54%)
HSV	hsv(231, 74%, 86%)
CMYK	cmyk(74%, 63%, 0%, 14.1%)
CIE-LAB	lab(41.00, 38.26, -72.99)
CIE-LCH	lch(41.00, 82.41, 297.66°)
OKLab	oklab(50.65% -0.002 -0.211)
OKLCH	oklch(50.65% 0.211 269.5)
XYZ	xyz(17.4116, 11.8673, 68.3771)
Luminance	0.1187 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3951DB #DBC339

analogous

#39A2DB #3951DB #7239DB

triadic

#3951DB #DB3951 #51DB39

tetradic

#3951DB #DB39A2 #DBC339 #39DB72

square

#3951DB #DB39A2 #DBC339 #39DB72

split-complementary

#3951DB #DB7239 #A2DB39

monochromatic

#182782 #2137B6 #3951DB #6D7FE4 #A1ACEE

Accessibility & contrast

On white

6.22

#3951DB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#3951DB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3951DB

6.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3951DB	#FFFFFF	#000000	##FFFFFF
##3951DB	1.00	6.22	3.37	6.22
#FFFFFF	6.22	1.00	21.00	1.00
#000000	3.37	21.00	1.00	21.00
##FFFFFF	6.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068DF

Deuteranopia (green-blind)

#0059D8

Tritanopia (blue-blind)

#00758E

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3951db;
/* rgb */ color: rgb(57, 81, 219);
/* oklch */ color: oklch(50.6% 0.211 269.5);

Tailwind

colors: {
  custom: {
    50: '#8681e7',
    500: '#3951db',
    950: '#000000',
  },
}

SCSS

$custom: #3951db;
$custom-light: #8681e7;
$custom-dark: #000000;

JSON

{
  "hex": "#3951db",
  "rgb": {
    "r": 57,
    "g": 81,
    "b": 219
  },
  "hsl": {
    "h": 231.111,
    "s": 69.231,
    "l": 54.118
  },
  "oklch": {
    "l": 0.5065,
    "c": 0.21101,
    "h": 269.5
  },
  "luminance": 0.11869
}

Semantic roles & 50–950 ramp

primary

#3951DB

secondary

#DAD095

accent

#D23CEC

background

#F9F7FE

surface

#F1EEFD

border

#CBC9D5

text

#0D0A16

muted

#7E7C84

Preview Lab

Preview with #3951DB

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

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