#3950BB#3950BB

#3950BB is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.8% C 0.170 H 269.6°. Best body text is #FFFFFF at 6.91:1 contrast (WCAG AA passes).

Color values

HEX	#3950BB
RGB	rgb(57, 80, 187)
HSL	hsl(229, 53%, 48%)
HSV	hsv(229, 70%, 73%)
CMYK	cmyk(69.5%, 57.2%, 0%, 26.7%)
CIE-LAB	lab(38.19, 27.45, -59.06)
CIE-LCH	lch(38.19, 65.13, 294.93°)
OKLab	oklab(47.76% -0.0011 -0.1701)
OKLCH	oklch(47.76% 0.17 269.6)
XYZ	xyz(13.5226, 10.1937, 48.2590)
Luminance	0.1019 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3950BB #BBA439

analogous

#3991BB #3950BB #6339BB

triadic

#3950BB #BB3950 #50BB39

tetradic

#3950BB #BB3991 #BBA439 #39BB63

square

#3950BB #BB3991 #BBA439 #39BB63

split-complementary

#3950BB #BB6339 #91BB39

monochromatic

#1C285D #2B3C8C #3950BB #6275CF #919EDD

Accessibility & contrast

On white

6.91

#3950BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#3950BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3950BB

6.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3950BB	#FFFFFF	#000000	##FFFFFF
##3950BB	1.00	6.91	3.04	6.91
#FFFFFF	6.91	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060BF

Deuteranopia (green-blind)

#0054B9

Tritanopia (blue-blind)

#006A7D

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3950bb;
/* rgb */ color: rgb(57, 80, 187);
/* oklch */ color: oklch(47.8% 0.170 269.6);

Tailwind

colors: {
  custom: {
    50: '#8080d0',
    500: '#3950bb',
    950: '#000000',
  },
}

SCSS

$custom: #3950bb;
$custom-light: #8080d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3950bb",
  "rgb": {
    "r": 57,
    "g": 80,
    "b": 187
  },
  "hsl": {
    "h": 229.385,
    "s": 53.279,
    "l": 47.843
  },
  "oklch": {
    "l": 0.47762,
    "c": 0.17014,
    "h": 269.6
  },
  "luminance": 0.10195
}

Semantic roles & 50–950 ramp

primary

#3950BB

secondary

#C8BD87

accent

#C34BDD

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3950BB

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

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