#3F5E8A#3F5E8A

#3F5E8A is a mid, moderate blue. Relative luminance 0.109; OKLCH L 47.8% C 0.080 H 257.2°. Best body text is #FFFFFF at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#3F5E8A
RGB	rgb(63, 94, 138)
HSL	hsl(215, 37%, 39%)
HSV	hsv(215, 54%, 54%)
CMYK	cmyk(54.3%, 31.9%, 0%, 45.9%)
CIE-LAB	lab(39.41, 2.15, -27.89)
CIE-LCH	lch(39.41, 27.97, 274.40°)
OKLab	oklab(47.8% -0.0178 -0.0784)
OKLCH	oklch(47.8% 0.08 257.2)
XYZ	xyz(10.6385, 10.8963, 25.5824)
Luminance	0.1090 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5E8A #8A6B3F

analogous

#3F848A #3F5E8A #463F8A

triadic

#3F5E8A #8A3F5E #5E8A3F

tetradic

#3F5E8A #8A3F84 #8A6B3F #3F8A46

square

#3F5E8A #8A3F84 #8A6B3F #3F8A46

split-complementary

#3F5E8A #8A463F #848A3F

monochromatic

#192536 #2C4160 #3F5E8A #557BB1 #7F9CC5

Accessibility & contrast

On white

6.61

#3F5E8A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#3F5E8A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5E8A

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5E8A	#FFFFFF	#000000	##FFFFFF
##3F5E8A	1.00	6.61	3.18	6.61
#FFFFFF	6.61	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D618C

Deuteranopia (green-blind)

#435A89

Tritanopia (blue-blind)

#17686E

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3f5e8a;
/* rgb */ color: rgb(63, 94, 138);
/* oklch */ color: oklch(47.8% 0.080 257.2);

Tailwind

colors: {
  custom: {
    50: '#798bac',
    500: '#3f5e8a',
    950: '#000000',
  },
}

SCSS

$custom: #3f5e8a;
$custom-light: #798bac;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5e8a",
  "rgb": {
    "r": 63,
    "g": 94,
    "b": 138
  },
  "hsl": {
    "h": 215.2,
    "s": 37.313,
    "l": 39.412
  },
  "oklch": {
    "l": 0.47802,
    "c": 0.08043,
    "h": 257.2
  },
  "luminance": 0.10897
}

Semantic roles & 50–950 ramp

primary

#3F5E8A

secondary

#AF9776

accent

#9E5BCD

background

#F7F8FA

surface

#EEF0F4

border

#C9CBCE

text

#090C10

muted

#7B7D7F

Preview Lab

Preview with #3F5E8A

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

Preview Lab → · Contrast checker → · Palette generator →