#128F4B#128F4B

#128F4B is a mid, vivid green. Relative luminance 0.203; OKLCH L 57.1% C 0.144 H 152.3°. Best body text is #000000 at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#128F4B
RGB	rgb(18, 143, 75)
HSL	hsl(147, 78%, 32%)
HSV	hsv(147, 87%, 56%)
CMYK	cmyk(87.4%, 0%, 47.6%, 43.9%)
CIE-LAB	lab(52.15, -47.61, 27.35)
CIE-LCH	lch(52.15, 54.91, 150.12°)
OKLab	oklab(57.15% -0.1277 0.0671)
OKLCH	oklch(57.15% 0.144 152.3)
XYZ	xyz(11.3409, 20.2801, 9.9720)
Luminance	0.2028 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#128F4B #8F1256

analogous

#188F12 #128F4B #128F8A

triadic

#128F4B #4B128F #8F4B12

tetradic

#128F4B #12188F #8F1256 #8F8A12

square

#128F4B #12188F #8F1256 #8F8A12

split-complementary

#128F4B #8A128F #8F1218

monochromatic

#042212 #0B592E #128F4B #19C568 #36E686

Accessibility & contrast

On white

4.15

#128F4B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.06

#128F4B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #128F4B

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##128F4B	#FFFFFF	#000000	##000000
##128F4B	1.00	4.15	5.06	5.06
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.06	21.00	1.00	1.00
##000000	5.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F8246

Deuteranopia (green-blind)

#827950

Tritanopia (blue-blind)

#008D7F

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #128f4b;
/* rgb */ color: rgb(18, 143, 75);
/* oklch */ color: oklch(57.1% 0.144 152.3);

Tailwind

colors: {
  custom: {
    50: '#6ab17e',
    500: '#128f4b',
    950: '#000000',
  },
}

SCSS

$custom: #128f4b;
$custom-light: #6ab17e;
$custom-dark: #000000;

JSON

{
  "hex": "#128f4b",
  "rgb": {
    "r": 18,
    "g": 143,
    "b": 75
  },
  "hsl": {
    "h": 147.36,
    "s": 77.64,
    "l": 31.569
  },
  "oklch": {
    "l": 0.57149,
    "c": 0.14426,
    "h": 152.3
  },
  "luminance": 0.20282
}

Semantic roles & 50–950 ramp

primary

#128F4B

secondary

#C33A84

accent

#349CF4

background

#F7FBF7

surface

#EDF6EE

border

#C8D0C9

text

#08110A

muted

#7B807C

Preview Lab

Preview with #128F4B

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

Preview Lab → · Contrast checker → · Palette generator →