#3F554B#3F554B

#3F554B is a dark, muted teal. Relative luminance 0.081; OKLCH L 42.8% C 0.032 H 165.3°. Best body text is #FFFFFF at 8.04:1 contrast (WCAG AA passes).

Color values

HEX	#3F554B
RGB	rgb(63, 85, 75)
HSL	hsl(153, 15%, 29%)
HSV	hsv(153, 26%, 33%)
CMYK	cmyk(25.9%, 0%, 11.8%, 66.7%)
CIE-LAB	lab(34.11, -10.81, 3.10)
CIE-LCH	lch(34.11, 11.25, 163.99°)
OKLab	oklab(42.8% -0.0306 0.008)
OKLCH	oklch(42.8% 0.032 165.3)
XYZ	xyz(6.5680, 8.0615, 7.8652)
Luminance	0.0806 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F554B #553F49

analogous

#3F5540 #3F554B #3F5455

triadic

#3F554B #4B3F55 #554B3F

tetradic

#3F554B #403F55 #553F49 #54553F

square

#3F554B #403F55 #553F49 #54553F

split-complementary

#3F554B #553F54 #55403F

monochromatic

#0D1210 #25322C #3F554B #59786A #759989

Accessibility & contrast

On white

8.04

#3F554B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#3F554B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F554B

8.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F554B	#FFFFFF	#000000	##FFFFFF
##3F554B	1.00	8.04	2.61	8.04
#FFFFFF	8.04	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#54524B

Deuteranopia (green-blind)

#504F4C

Tritanopia (blue-blind)

#3A5552

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3f554b;
/* rgb */ color: rgb(63, 85, 75);
/* oklch */ color: oklch(42.8% 0.032 165.3);

Tailwind

colors: {
  custom: {
    50: '#74857d',
    500: '#3f554b',
    950: '#000000',
  },
}

SCSS

$custom: #3f554b;
$custom-light: #74857d;
$custom-dark: #000000;

JSON

{
  "hex": "#3f554b",
  "rgb": {
    "r": 63,
    "g": 85,
    "b": 75
  },
  "hsl": {
    "h": 152.727,
    "s": 14.865,
    "l": 29.02
  },
  "oklch": {
    "l": 0.42803,
    "c": 0.03168,
    "h": 165.3
  },
  "luminance": 0.08062
}

Semantic roles & 50–950 ramp

primary

#3F554B

secondary

#846B77

accent

#7091B8

background

#F7F8F7

surface

#EDEFEE

border

#C8CAC9

text

#080B09

muted

#7B7C7B

Preview Lab

Preview with #3F554B

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

Preview Lab → · Contrast checker → · Palette generator →