#3F658E#3F658E

#3F658E is a mid, moderate cyan. Relative luminance 0.123; OKLCH L 49.7% C 0.079 H 251.4°. Best body text is #FFFFFF at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#3F658E
RGB	rgb(63, 101, 142)
HSL	hsl(211, 39%, 40%)
HSV	hsv(211, 56%, 56%)
CMYK	cmyk(55.6%, 28.9%, 0%, 44.3%)
CIE-LAB	lab(41.71, -0.87, -26.69)
CIE-LCH	lch(41.71, 26.70, 268.14°)
OKLab	oklab(49.67% -0.0252 -0.0749)
OKLCH	oklch(49.67% 0.079 251.4)
XYZ	xyz(11.5843, 12.3162, 27.3527)
Luminance	0.1232 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F658E #8E683F

analogous

#3F8D8E #3F658E #403F8E

triadic

#3F658E #8E3F65 #658E3F

tetradic

#3F658E #8E3F8D #8E683F #3F8E40

square

#3F658E #8E3F8D #8E683F #3F8E40

split-complementary

#3F658E #8E403F #8D8E3F

monochromatic

#192939 #2C4764 #3F658E #5683B4 #81A2C7

Accessibility & contrast

On white

6.06

#3F658E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#3F658E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F658E

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F658E	#FFFFFF	#000000	##FFFFFF
##3F658E	1.00	6.06	3.46	6.06
#FFFFFF	6.06	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#546790

Deuteranopia (green-blind)

#4A5F8D

Tritanopia (blue-blind)

#0D6E73

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #3f658e;
/* rgb */ color: rgb(63, 101, 142);
/* oklch */ color: oklch(49.7% 0.079 251.4);

Tailwind

colors: {
  custom: {
    50: '#7a90af',
    500: '#3f658e',
    950: '#000000',
  },
}

SCSS

$custom: #3f658e;
$custom-light: #7a90af;
$custom-dark: #000000;

JSON

{
  "hex": "#3f658e",
  "rgb": {
    "r": 63,
    "g": 101,
    "b": 142
  },
  "hsl": {
    "h": 211.139,
    "s": 38.537,
    "l": 40.196
  },
  "oklch": {
    "l": 0.49674,
    "c": 0.07906,
    "h": 251.4
  },
  "luminance": 0.12317
}

Semantic roles & 50–950 ramp

primary

#3F658E

secondary

#B19578

accent

#9659CE

background

#F7F8FA

surface

#EEF0F4

border

#C9CBCE

text

#0A0C10

muted

#7C7D7F

Preview Lab

Preview with #3F658E

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

Preview Lab → · Contrast checker → · Palette generator →