#1B9028#1B9028

#1B9028 is a mid, vivid green. Relative luminance 0.203; OKLCH L 57.1% C 0.173 H 144.1°. Best body text is #000000 at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#1B9028
RGB	rgb(27, 144, 40)
HSL	hsl(127, 68%, 34%)
HSV	hsv(127, 81%, 56%)
CMYK	cmyk(81.3%, 0%, 72.2%, 43.5%)
CIE-LAB	lab(52.21, -51.78, 44.30)
CIE-LCH	lch(52.21, 68.14, 139.45°)
OKLab	oklab(57.1% -0.1399 0.1012)
OKLCH	oklch(57.1% 0.173 144.1)
XYZ	xyz(10.8075, 20.3314, 5.3618)
Luminance	0.2033 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B9028 #901B83

analogous

#48901B #1B9028 #1B9062

triadic

#1B9028 #281B90 #90281B

tetradic

#1B9028 #1B4890 #901B83 #90621B

square

#1B9028 #1B4890 #901B83 #90621B

split-complementary

#1B9028 #621B90 #901B48

monochromatic

#08290B #115C1A #1B9028 #25C436 #49DD59

Accessibility & contrast

On white

4.14

#1B9028 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.07

#1B9028 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B9028

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B9028	#FFFFFF	#000000	##000000
##1B9028	1.00	4.14	5.07	5.07
#FFFFFF	4.14	1.00	21.00	21.00
#000000	5.07	21.00	1.00	1.00
##000000	5.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#938218

Deuteranopia (green-blind)

#867932

Tritanopia (blue-blind)

#008C7B

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #1b9028;
/* rgb */ color: rgb(27, 144, 40);
/* oklch */ color: oklch(57.1% 0.173 144.1);

Tailwind

colors: {
  custom: {
    50: '#6eb268',
    500: '#1b9028',
    950: '#000000',
  },
}

SCSS

$custom: #1b9028;
$custom-light: #6eb268;
$custom-dark: #000000;

JSON

{
  "hex": "#1b9028",
  "rgb": {
    "r": 27,
    "g": 144,
    "b": 40
  },
  "hsl": {
    "h": 126.667,
    "s": 68.421,
    "l": 33.529
  },
  "oklch": {
    "l": 0.57102,
    "c": 0.17267,
    "h": 144.1
  },
  "luminance": 0.20333
}

Semantic roles & 50–950 ramp

primary

#1B9028

secondary

#BF48B1

accent

#3DD8EB

background

#F7FBF6

surface

#EDF6EB

border

#C8D0C6

text

#091106

muted

#7B807A

Preview Lab

Preview with #1B9028

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

Preview Lab → · Contrast checker → · Palette generator →