#3F4E90#3F4E90

#3F4E90 is a dark, moderate blue. Relative luminance 0.085; OKLCH L 44.5% C 0.109 H 271.7°. Best body text is #FFFFFF at 7.77:1 contrast (WCAG AA passes).

Color values

HEX	#3F4E90
RGB	rgb(63, 78, 144)
HSL	hsl(229, 39%, 41%)
HSV	hsv(229, 56%, 56%)
CMYK	cmyk(56.3%, 45.8%, 0%, 43.5%)
CIE-LAB	lab(35.04, 14.51, -38.43)
CIE-LCH	lch(35.04, 41.08, 290.68°)
OKLab	oklab(44.54% 0.0032 -0.1094)
OKLCH	oklch(44.54% 0.109 271.7)
XYZ	xyz(9.8067, 8.5185, 27.5076)
Luminance	0.0852 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4E90 #90813F

analogous

#3F7690 #3F4E90 #583F90

triadic

#3F4E90 #903F4E #4E903F

tetradic

#3F4E90 #903F76 #90813F #3F9058

square

#3F4E90 #903F76 #90813F #3F9058

split-complementary

#3F4E90 #90583F #76903F

monochromatic

#1A203B #2C3765 #3F4E90 #5768B5 #818EC8

Accessibility & contrast

On white

7.77

#3F4E90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#3F4E90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4E90

7.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4E90	#FFFFFF	#000000	##FFFFFF
##3F4E90	1.00	7.77	2.70	7.77
#FFFFFF	7.77	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#315692

Deuteranopia (green-blind)

#274F8F

Tritanopia (blue-blind)

#135C68

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3f4e90;
/* rgb */ color: rgb(63, 78, 144);
/* oklch */ color: oklch(44.5% 0.109 271.7);

Tailwind

colors: {
  custom: {
    50: '#7a7fb1',
    500: '#3f4e90',
    950: '#000000',
  },
}

SCSS

$custom: #3f4e90;
$custom-light: #7a7fb1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4e90",
  "rgb": {
    "r": 63,
    "g": 78,
    "b": 144
  },
  "hsl": {
    "h": 228.889,
    "s": 39.13,
    "l": 40.588
  },
  "oklch": {
    "l": 0.44535,
    "c": 0.10941,
    "h": 271.7
  },
  "luminance": 0.08519
}

Semantic roles & 50–950 ramp

primary

#3F4E90

secondary

#B2A878

accent

#B959CF

background

#F7F7FA

surface

#EEEEF5

border

#C9C9CF

text

#0A0A11

muted

#7C7C80

Preview Lab

Preview with #3F4E90

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

Preview Lab → · Contrast checker → · Palette generator →