#3F357D#3F357D

#3F357D is a dark, moderate blue. Relative luminance 0.051; OKLCH L 38.1% C 0.117 H 285.7°. Best body text is #FFFFFF at 10.41:1 contrast (WCAG AA passes).

Color values

HEX	#3F357D
RGB	rgb(63, 53, 125)
HSL	hsl(248, 40%, 35%)
HSV	hsv(248, 58%, 49%)
CMYK	cmyk(49.6%, 57.6%, 0%, 51%)
CIE-LAB	lab(26.97, 24.60, -39.62)
CIE-LCH	lch(26.97, 46.64, 301.84°)
OKLab	oklab(38.05% 0.0318 -0.113)
OKLCH	oklch(38.05% 0.117 285.7)
XYZ	xyz(7.0236, 5.0833, 20.0092)
Luminance	0.0508 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F357D #737D35

analogous

#354F7D #3F357D #63357D

triadic

#3F357D #7D3F35 #357D3F

tetradic

#3F357D #7D354F #737D35 #357D63

square

#3F357D #7D354F #737D35 #357D63

split-complementary

#3F357D #7D6335 #4F7D35

monochromatic

#141127 #292352 #3F357D #5547A8 #786CC1

Accessibility & contrast

On white

10.41

#3F357D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#3F357D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F357D

10.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F357D	#FFFFFF	#000000	##FFFFFF
##3F357D	1.00	10.41	2.02	10.41
#FFFFFF	10.41	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A427F

Deuteranopia (green-blind)

#073E7B

Tritanopia (blue-blind)

#2A4553

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #3f357d;
/* rgb */ color: rgb(63, 53, 125);
/* oklch */ color: oklch(38.1% 0.117 285.7);

Tailwind

colors: {
  custom: {
    50: '#796ca3',
    500: '#3f357d',
    950: '#000000',
  },
}

SCSS

$custom: #3f357d;
$custom-light: #796ca3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f357d",
  "rgb": {
    "r": 63,
    "g": 53,
    "b": 125
  },
  "hsl": {
    "h": 248.333,
    "s": 40.449,
    "l": 34.902
  },
  "oklch": {
    "l": 0.38052,
    "c": 0.11744,
    "h": 285.7
  },
  "luminance": 0.05084
}

Semantic roles & 50–950 ramp

primary

#3F357D

secondary

#9FA965

accent

#D057C0

background

#F7F6FA

surface

#EEEBF4

border

#C9C6CE

text

#09070F

muted

#7B7A7F

Preview Lab

Preview with #3F357D

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

Preview Lab → · Contrast checker → · Palette generator →