#1B7740#1B7740

#1B7740 is a mid, vivid green. Relative luminance 0.138; OKLCH L 50.3% C 0.120 H 152.1°. Best body text is #FFFFFF at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#1B7740
RGB	rgb(27, 119, 64)
HSL	hsl(144, 63%, 29%)
HSV	hsv(144, 77%, 47%)
CMYK	cmyk(77.3%, 0%, 46.2%, 53.3%)
CIE-LAB	lab(43.94, -39.48, 22.87)
CIE-LCH	lch(43.94, 45.62, 149.91°)
OKLab	oklab(50.33% -0.1062 0.0563)
OKLCH	oklch(50.33% 0.12 152.1)
XYZ	xyz(7.9735, 13.7959, 7.0921)
Luminance	0.1380 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B7740 #771B52

analogous

#24771B #1B7740 #1B776E

triadic

#1B7740 #401B77 #77401B

tetradic

#1B7740 #1B2477 #771B52 #776E1B

square

#1B7740 #1B2477 #771B52 #776E1B

split-complementary

#1B7740 #6E1B77 #771B24

monochromatic

#06190D #104525 #1B7740 #26A95B #3AD277

Accessibility & contrast

On white

5.59

#1B7740 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#1B7740 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B7740

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B7740	#FFFFFF	#000000	##FFFFFF
##1B7740	1.00	5.59	3.76	5.59
#FFFFFF	5.59	1.00	21.00	1.00
#000000	3.76	21.00	1.00	21.00
##FFFFFF	5.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#776C3C

Deuteranopia (green-blind)

#6C6544

Tritanopia (blue-blind)

#00756A

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #1b7740;
/* rgb */ color: rgb(27, 119, 64);
/* oklch */ color: oklch(50.3% 0.120 152.1);

Tailwind

colors: {
  custom: {
    50: '#679f75',
    500: '#1b7740',
    950: '#000000',
  },
}

SCSS

$custom: #1b7740;
$custom-light: #679f75;
$custom-dark: #000000;

JSON

{
  "hex": "#1b7740",
  "rgb": {
    "r": 27,
    "g": 119,
    "b": 64
  },
  "hsl": {
    "h": 144.13,
    "s": 63.014,
    "l": 28.627
  },
  "oklch": {
    "l": 0.50334,
    "c": 0.12024,
    "h": 152.1
  },
  "luminance": 0.13797
}

Semantic roles & 50–950 ramp

primary

#1B7740

secondary

#AB4281

accent

#42A4E6

background

#F6F9F7

surface

#EBF2ED

border

#C6CCC8

text

#070F08

muted

#7A7E7B

Preview Lab

Preview with #1B7740

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

Preview Lab → · Contrast checker → · Palette generator →