#3F5FCA#3F5FCA

#3F5FCA is a mid, vivid blue. Relative luminance 0.135; OKLCH L 52.2% C 0.170 H 267.6°. Best body text is #FFFFFF at 5.67:1 contrast (WCAG AA passes).

Color values

HEX	#3F5FCA
RGB	rgb(63, 95, 202)
HSL	hsl(226, 57%, 52%)
HSV	hsv(226, 69%, 79%)
CMYK	cmyk(68.8%, 53%, 0%, 20.8%)
CIE-LAB	lab(43.51, 24.08, -59.13)
CIE-LCH	lch(43.51, 63.85, 292.16°)
OKLab	oklab(52.19% -0.0071 -0.17)
OKLCH	oklch(52.19% 0.17 267.6)
XYZ	xyz(16.7991, 13.5038, 57.5868)
Luminance	0.1351 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5FCA #CAAA3F

analogous

#3FA5CA #3F5FCA #653FCA

triadic

#3F5FCA #CA3F5F #5FCA3F

tetradic

#3F5FCA #CA3FA5 #CAAA3F #3FCA65

square

#3F5FCA #CA3FA5 #CAAA3F #3FCA65

split-complementary

#3F5FCA #CA653F #A5CA3F

monochromatic

#1F3170 #2C47A0 #3F5FCA #6F87D7 #9FAFE4

Accessibility & contrast

On white

5.67

#3F5FCA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#3F5FCA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5FCA

5.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5FCA	#FFFFFF	#000000	##FFFFFF
##3F5FCA	1.00	5.67	3.70	5.67
#FFFFFF	5.67	1.00	21.00	1.00
#000000	3.70	21.00	1.00	21.00
##FFFFFF	5.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#146DCE

Deuteranopia (green-blind)

#0061C8

Tritanopia (blue-blind)

#00798B

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3f5fca;
/* rgb */ color: rgb(63, 95, 202);
/* oklch */ color: oklch(52.2% 0.170 267.6);

Tailwind

colors: {
  custom: {
    50: '#848cdb',
    500: '#3f5fca',
    950: '#000000',
  },
}

SCSS

$custom: #3f5fca;
$custom-light: #848cdb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5fca",
  "rgb": {
    "r": 63,
    "g": 95,
    "b": 202
  },
  "hsl": {
    "h": 226.187,
    "s": 56.735,
    "l": 51.961
  },
  "oklch": {
    "l": 0.52191,
    "c": 0.17016,
    "h": 267.6
  },
  "luminance": 0.13505
}

Semantic roles & 50–950 ramp

primary

#3F5FCA

secondary

#D1C394

accent

#BD48E0

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3F5FCA

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

Preview Lab → · Contrast checker → · Palette generator →