#3F669E#3F669E

#3F669E is a mid, moderate blue. Relative luminance 0.130; OKLCH L 50.8% C 0.100 H 257.5°. Best body text is #FFFFFF at 5.82:1 contrast (WCAG AA passes).

Color values

HEX	#3F669E
RGB	rgb(63, 102, 158)
HSL	hsl(215, 43%, 43%)
HSV	hsv(215, 60%, 62%)
CMYK	cmyk(60.1%, 35.4%, 0%, 38%)
CIE-LAB	lab(42.80, 3.96, -34.53)
CIE-LCH	lch(42.80, 34.75, 276.54°)
OKLab	oklab(50.79% -0.0217 -0.0977)
OKLCH	oklch(50.79% 0.1 257.5)
XYZ	xyz(12.9707, 13.0270, 34.1721)
Luminance	0.1303 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F669E #9E773F

analogous

#3F959E #3F669E #473F9E

triadic

#3F669E #9E3F66 #669E3F

tetradic

#3F669E #9E3F95 #9E773F #3F9E47

square

#3F669E #9E3F95 #9E773F #3F9E47

split-complementary

#3F669E #9E473F #959E3F

monochromatic

#1C2E46 #2E4A72 #3F669E #5C84BE #88A5D0

Accessibility & contrast

On white

5.82

#3F669E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#3F669E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F669E

5.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F669E	#FFFFFF	#000000	##FFFFFF
##3F669E	1.00	5.82	3.61	5.82
#FFFFFF	5.82	1.00	21.00	1.00
#000000	3.61	21.00	1.00	21.00
##FFFFFF	5.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F6AA0

Deuteranopia (green-blind)

#42619D

Tritanopia (blue-blind)

#00737A

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3f669e;
/* rgb */ color: rgb(63, 102, 158);
/* oklch */ color: oklch(50.8% 0.100 257.5);

Tailwind

colors: {
  custom: {
    50: '#7c91bb',
    500: '#3f669e',
    950: '#000000',
  },
}

SCSS

$custom: #3f669e;
$custom-light: #7c91bb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f669e",
  "rgb": {
    "r": 63,
    "g": 102,
    "b": 158
  },
  "hsl": {
    "h": 215.368,
    "s": 42.986,
    "l": 43.333
  },
  "oklch": {
    "l": 0.50786,
    "c": 0.10007,
    "h": 257.5
  },
  "luminance": 0.13028
}

Semantic roles & 50–950 ramp

primary

#3F669E

secondary

#BAA27F

accent

#9F55D3

background

#F7F8FB

surface

#EEF0F6

border

#C9CBD0

text

#0A0C12

muted

#7C7D81

Preview Lab

Preview with #3F669E

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

Preview Lab → · Contrast checker → · Palette generator →