#1B9E4F#1B9E4F

#1B9E4F is a mid, vivid green. Relative luminance 0.253; OKLCH L 61.5% C 0.158 H 150.7°. Best body text is #000000 at 6.05:1 contrast (WCAG AA passes).

Color values

HEX	#1B9E4F
RGB	rgb(27, 158, 79)
HSL	hsl(144, 71%, 36%)
HSV	hsv(144, 83%, 62%)
CMYK	cmyk(82.9%, 0%, 50%, 38%)
CIE-LAB	lab(57.32, -51.41, 31.80)
CIE-LCH	lch(57.32, 60.45, 148.26°)
OKLab	oklab(61.48% -0.1379 0.0774)
OKLCH	oklch(61.48% 0.158 150.7)
XYZ	xyz(14.0889, 25.2495, 11.5267)
Luminance	0.2525 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B9E4F #9E1B6A

analogous

#289E1B #1B9E4F #1B9E91

triadic

#1B9E4F #4F1B9E #9E4F1B

tetradic

#1B9E4F #1B289E #9E1B6A #9E911B

square

#1B9E4F #1B289E #9E1B6A #9E911B

split-complementary

#1B9E4F #911B9E #9E1B28

monochromatic

#09351B #126A35 #1B9E4F #24D269 #52E18B

Accessibility & contrast

On white

3.47

#1B9E4F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.05

#1B9E4F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B9E4F

6.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B9E4F	#FFFFFF	#000000	##000000
##1B9E4F	1.00	3.47	6.05	6.05
#FFFFFF	3.47	1.00	21.00	21.00
#000000	6.05	21.00	1.00	1.00
##000000	6.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9F9049

Deuteranopia (green-blind)

#908655

Tritanopia (blue-blind)

#009B8B

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #1b9e4f;
/* rgb */ color: rgb(27, 158, 79);
/* oklch */ color: oklch(61.5% 0.158 150.7);

Tailwind

colors: {
  custom: {
    50: '#70bc82',
    500: '#1b9e4f',
    950: '#000000',
  },
}

SCSS

$custom: #1b9e4f;
$custom-light: #70bc82;
$custom-dark: #000000;

JSON

{
  "hex": "#1b9e4f",
  "rgb": {
    "r": 27,
    "g": 158,
    "b": 79
  },
  "hsl": {
    "h": 143.817,
    "s": 70.811,
    "l": 36.275
  },
  "oklch": {
    "l": 0.6148,
    "c": 0.15817,
    "h": 150.7
  },
  "luminance": 0.25251
}

Semantic roles & 50–950 ramp

primary

#1B9E4F

secondary

#C45196

accent

#3AA6EE

background

#F7FBF8

surface

#EDF6EF

border

#C8D0CA

text

#09120A

muted

#7B817C

Preview Lab

Preview with #1B9E4F

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

Preview Lab → · Contrast checker → · Palette generator →