#3F58AE#3F58AE

#3F58AE is a mid, vivid blue. Relative luminance 0.111; OKLCH L 48.7% C 0.140 H 268.6°. Best body text is #FFFFFF at 6.52:1 contrast (WCAG AA passes).

Color values

HEX	#3F58AE
RGB	rgb(63, 88, 174)
HSL	hsl(226, 47%, 46%)
HSV	hsv(226, 64%, 68%)
CMYK	cmyk(63.8%, 49.4%, 0%, 31.8%)
CIE-LAB	lab(39.73, 18.55, -48.90)
CIE-LCH	lch(39.73, 52.30, 290.77°)
OKLab	oklab(48.72% -0.0034 -0.14)
OKLCH	oklch(48.72% 0.14 268.6)
XYZ	xyz(13.1770, 11.0910, 41.4826)
Luminance	0.1109 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F58AE #AE953F

analogous

#3F90AE #3F58AE #5E3FAE

triadic

#3F58AE #AE3F58 #58AE3F

tetradic

#3F58AE #AE3F90 #AE953F #3FAE5E

square

#3F58AE #AE3F90 #AE953F #3FAE5E

split-complementary

#3F58AE #AE5E3F #90AE3F

monochromatic

#1E2B54 #2F4181 #3F58AE #647AC7 #90A0D7

Accessibility & contrast

On white

6.52

#3F58AE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#3F58AE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F58AE

6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F58AE	#FFFFFF	#000000	##FFFFFF
##3F58AE	1.00	6.52	3.22	6.52
#FFFFFF	6.52	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A63B1

Deuteranopia (green-blind)

#1159AC

Tritanopia (blue-blind)

#006C7A

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3f58ae;
/* rgb */ color: rgb(63, 88, 174);
/* oklch */ color: oklch(48.7% 0.140 268.6);

Tailwind

colors: {
  custom: {
    50: '#7f86c7',
    500: '#3f58ae',
    950: '#000000',
  },
}

SCSS

$custom: #3f58ae;
$custom-light: #7f86c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f58ae",
  "rgb": {
    "r": 63,
    "g": 88,
    "b": 174
  },
  "hsl": {
    "h": 226.486,
    "s": 46.835,
    "l": 46.471
  },
  "oklch": {
    "l": 0.48723,
    "c": 0.14003,
    "h": 268.6
  },
  "luminance": 0.11092
}

Semantic roles & 50–950 ramp

primary

#3F58AE

secondary

#C2B587

accent

#B851D6

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3F58AE

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

Preview Lab → · Contrast checker → · Palette generator →