#3F5188#3F5188

#3F5188 is a dark, moderate blue. Relative luminance 0.087; OKLCH L 44.7% C 0.093 H 268.8°. Best body text is #FFFFFF at 7.65:1 contrast (WCAG AA passes).

Color values

HEX	#3F5188
RGB	rgb(63, 81, 136)
HSL	hsl(225, 37%, 39%)
HSV	hsv(225, 54%, 53%)
CMYK	cmyk(53.7%, 40.4%, 0%, 46.7%)
CIE-LAB	lab(35.44, 9.80, -32.92)
CIE-LCH	lch(35.44, 34.35, 286.58°)
OKLab	oklab(44.69% -0.002 -0.0932)
OKLCH	oklch(44.69% 0.093 268.8)
XYZ	xyz(9.4348, 8.7185, 24.4735)
Luminance	0.0872 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5188 #88763F

analogous

#3F7688 #3F5188 #523F88

triadic

#3F5188 #883F51 #51883F

tetradic

#3F5188 #883F76 #88763F #3F8852

square

#3F5188 #883F76 #88763F #3F8852

split-complementary

#3F5188 #88523F #76883F

monochromatic

#181F34 #2C385E #3F5188 #546BB0 #7E8FC3

Accessibility & contrast

On white

7.65

#3F5188 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#3F5188 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F5188

7.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5188	#FFFFFF	#000000	##FFFFFF
##3F5188	1.00	7.65	2.74	7.65
#FFFFFF	7.65	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B578A

Deuteranopia (green-blind)

#335087

Tritanopia (blue-blind)

#1D5D66

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3f5188;
/* rgb */ color: rgb(63, 81, 136);
/* oklch */ color: oklch(44.7% 0.093 268.8);

Tailwind

colors: {
  custom: {
    50: '#7981ab',
    500: '#3f5188',
    950: '#000000',
  },
}

SCSS

$custom: #3f5188;
$custom-light: #7981ab;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5188",
  "rgb": {
    "r": 63,
    "g": 81,
    "b": 136
  },
  "hsl": {
    "h": 225.205,
    "s": 36.683,
    "l": 39.02
  },
  "oklch": {
    "l": 0.44687,
    "c": 0.0932,
    "h": 268.8
  },
  "luminance": 0.08719
}

Semantic roles & 50–950 ramp

primary

#3F5188

secondary

#AEA075

accent

#B15BCD

background

#F7F7FA

surface

#EEEEF4

border

#C9C9CE

text

#090A10

muted

#7B7C7F

Preview Lab

Preview with #3F5188

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

Preview Lab → · Contrast checker → · Palette generator →