#3F367B#3F367B

#3F367B is a dark, moderate blue. Relative luminance 0.051; OKLCH L 38.1% C 0.113 H 285.7°. Best body text is #FFFFFF at 10.37:1 contrast (WCAG AA passes).

Color values

HEX	#3F367B
RGB	rgb(63, 54, 123)
HSL	hsl(248, 39%, 35%)
HSV	hsv(248, 56%, 48%)
CMYK	cmyk(48.8%, 56.1%, 0%, 51.8%)
CIE-LAB	lab(27.09, 23.29, -38.17)
CIE-LCH	lch(27.09, 44.72, 301.39°)
OKLab	oklab(38.09% 0.0305 -0.1088)
OKLCH	oklch(38.09% 0.113 285.7)
XYZ	xyz(6.9432, 5.1248, 19.3584)
Luminance	0.0512 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F367B #727B36

analogous

#36507B #3F367B #62367B

triadic

#3F367B #7B3F36 #367B3F

tetradic

#3F367B #7B3650 #727B36 #367B62

square

#3F367B #7B3650 #727B36 #367B62

split-complementary

#3F367B #7B6236 #507B36

monochromatic

#131126 #292350 #3F367B #5549A6 #776DBF

Accessibility & contrast

On white

10.37

#3F367B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#3F367B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F367B

10.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F367B	#FFFFFF	#000000	##FFFFFF
##3F367B	1.00	10.37	2.03	10.37
#FFFFFF	10.37	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#11427D

Deuteranopia (green-blind)

#0F3E79

Tritanopia (blue-blind)

#2B4553

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #3f367b;
/* rgb */ color: rgb(63, 54, 123);
/* oklch */ color: oklch(38.1% 0.113 285.7);

Tailwind

colors: {
  custom: {
    50: '#796da2',
    500: '#3f367b',
    950: '#000000',
  },
}

SCSS

$custom: #3f367b;
$custom-light: #796da2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f367b",
  "rgb": {
    "r": 63,
    "g": 54,
    "b": 123
  },
  "hsl": {
    "h": 247.826,
    "s": 38.983,
    "l": 34.706
  },
  "oklch": {
    "l": 0.38093,
    "c": 0.11298,
    "h": 285.7
  },
  "luminance": 0.05125
}

Semantic roles & 50–950 ramp

primary

#3F367B

secondary

#9FA765

accent

#CF59C0

background

#F7F6FA

surface

#EEEBF3

border

#C9C6CD

text

#09070F

muted

#7B7A7F

Preview Lab

Preview with #3F367B

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

Preview Lab → · Contrast checker → · Palette generator →