#3F668E#3F668E

#3F668E is a mid, moderate cyan. Relative luminance 0.125; OKLCH L 49.9% C 0.078 H 250.2°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#3F668E
RGB	rgb(63, 102, 142)
HSL	hsl(210, 39%, 40%)
HSV	hsv(210, 56%, 56%)
CMYK	cmyk(55.6%, 28.2%, 0%, 44.3%)
CIE-LAB	lab(42.02, -1.48, -26.21)
CIE-LCH	lch(42.02, 26.26, 266.77°)
OKLab	oklab(49.91% -0.0264 -0.0735)
OKLCH	oklch(49.91% 0.078 250.2)
XYZ	xyz(11.6820, 12.5115, 27.3853)
Luminance	0.1251 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F668E #8E673F

analogous

#3F8D8E #3F668E #3F3F8E

triadic

#3F668E #8E3F66 #668E3F

tetradic

#3F668E #8E3F8D #8E673F #3F8E3F

square

#3F668E #8E3F8D #8E673F #3F8E3F

split-complementary

#3F668E #8E3F3F #8D8E3F

monochromatic

#192939 #2C4864 #3F668E #5685B4 #81A3C7

Accessibility & contrast

On white

6.00

#3F668E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#3F668E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F668E

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F668E	#FFFFFF	#000000	##FFFFFF
##3F668E	1.00	6.00	3.50	6.00
#FFFFFF	6.00	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#566790

Deuteranopia (green-blind)

#4B608D

Tritanopia (blue-blind)

#0D6F74

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #3f668e;
/* rgb */ color: rgb(63, 102, 142);
/* oklch */ color: oklch(49.9% 0.078 250.2);

Tailwind

colors: {
  custom: {
    50: '#7a91af',
    500: '#3f668e',
    950: '#000000',
  },
}

SCSS

$custom: #3f668e;
$custom-light: #7a91af;
$custom-dark: #000000;

JSON

{
  "hex": "#3f668e",
  "rgb": {
    "r": 63,
    "g": 102,
    "b": 142
  },
  "hsl": {
    "h": 210.38,
    "s": 38.537,
    "l": 40.196
  },
  "oklch": {
    "l": 0.49913,
    "c": 0.07816,
    "h": 250.2
  },
  "luminance": 0.12512
}

Semantic roles & 50–950 ramp

primary

#3F668E

secondary

#B19578

accent

#9559CE

background

#F7F8FA

surface

#EEF0F4

border

#C9CBCE

text

#0A0C10

muted

#7C7D7F

Preview Lab

Preview with #3F668E

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

Preview Lab → · Contrast checker → · Palette generator →