#103F40#103F40

#103F40 is a dark, muted teal. Relative luminance 0.040; OKLCH L 33.7% C 0.049 H 197.1°. Best body text is #FFFFFF at 11.62:1 contrast (WCAG AA passes).

Color values

HEX	#103F40
RGB	rgb(16, 63, 64)
HSL	hsl(181, 60%, 16%)
HSV	hsv(181, 75%, 25%)
CMYK	cmyk(75%, 1.6%, 0%, 74.9%)
CIE-LAB	lab(23.79, -14.97, -5.22)
CIE-LCH	lch(23.79, 15.85, 199.23°)
OKLab	oklab(33.74% -0.047 -0.0145)
OKLCH	oklch(33.74% 0.049 197.1)
XYZ	xyz(2.9162, 4.0350, 5.4746)
Luminance	0.0403 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103F40 #401110

analogous

#104029 #103F40 #102740

triadic

#103F40 #40103F #3F4010

tetradic

#103F40 #291040 #401110 #274010

square

#103F40 #291040 #401110 #274010

split-complementary

#103F40 #401027 #402910

monochromatic

#061818 #061818 #103F40 #1C6F71 #289FA2

Accessibility & contrast

On white

11.62

#103F40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#103F40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103F40

11.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103F40	#FFFFFF	#000000	##FFFFFF
##103F40	1.00	11.62	1.81	11.62
#FFFFFF	11.62	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A3C40

Deuteranopia (green-blind)

#333640

Tritanopia (blue-blind)

#00413F

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #103f40;
/* rgb */ color: rgb(16, 63, 64);
/* oklch */ color: oklch(33.7% 0.049 197.1);

Tailwind

colors: {
  custom: {
    50: '#577474',
    500: '#103f40',
    950: '#000000',
  },
}

SCSS

$custom: #103f40;
$custom-light: #577474;
$custom-dark: #000000;

JSON

{
  "hex": "#103f40",
  "rgb": {
    "r": 16,
    "g": 63,
    "b": 64
  },
  "hsl": {
    "h": 181.25,
    "s": 60,
    "l": 15.686
  },
  "oklch": {
    "l": 0.33735,
    "c": 0.0492,
    "h": 197.1
  },
  "luminance": 0.04035
}

Semantic roles & 50–950 ramp

primary

#103F40

secondary

#7A3332

accent

#4845E3

background

#F5F7F7

surface

#E9EDED

border

#C5C8C8

text

#030808

muted

#787B7B

Preview Lab

Preview with #103F40

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

Preview Lab → · Contrast checker → · Palette generator →