#1B823B#1B823B

#1B823B is a mid, vivid green. Relative luminance 0.165; OKLCH L 53.4% C 0.140 H 148.7°. Best body text is #FFFFFF at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#1B823B
RGB	rgb(27, 130, 59)
HSL	hsl(139, 66%, 31%)
HSV	hsv(139, 79%, 51%)
CMYK	cmyk(79.2%, 0%, 54.6%, 49%)
CIE-LAB	lab(47.64, -44.55, 30.23)
CIE-LCH	lch(47.64, 53.83, 145.84°)
OKLab	oklab(53.37% -0.1197 0.0728)
OKLCH	oklch(53.37% 0.14 148.7)
XYZ	xyz(9.2233, 16.5129, 6.8380)
Luminance	0.1651 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B823B #821B62

analogous

#2E821B #1B823B #1B826E

triadic

#1B823B #3B1B82 #823B1B

tetradic

#1B823B #1B2E82 #821B62 #826E1B

square

#1B823B #1B2E82 #821B62 #826E1B

split-complementary

#1B823B #6E1B82 #821B2E

monochromatic

#061D0D #104F24 #1B823B #26B552 #40D76F

Accessibility & contrast

On white

4.88

#1B823B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.30

#1B823B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B823B

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B823B	#FFFFFF	#000000	##FFFFFF
##1B823B	1.00	4.88	4.30	4.88
#FFFFFF	4.88	1.00	21.00	1.00
#000000	4.30	21.00	1.00	21.00
##FFFFFF	4.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#837635

Deuteranopia (green-blind)

#786E40

Tritanopia (blue-blind)

#007F72

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #1b823b;
/* rgb */ color: rgb(27, 130, 59);
/* oklch */ color: oklch(53.4% 0.140 148.7);

Tailwind

colors: {
  custom: {
    50: '#6aa773',
    500: '#1b823b',
    950: '#000000',
  },
}

SCSS

$custom: #1b823b;
$custom-light: #6aa773;
$custom-dark: #000000;

JSON

{
  "hex": "#1b823b",
  "rgb": {
    "r": 27,
    "g": 130,
    "b": 59
  },
  "hsl": {
    "h": 138.641,
    "s": 65.605,
    "l": 30.784
  },
  "oklch": {
    "l": 0.53373,
    "c": 0.14009,
    "h": 148.7
  },
  "luminance": 0.16514
}

Semantic roles & 50–950 ramp

primary

#1B823B

secondary

#B64392

accent

#3FB4E9

background

#F6FAF7

surface

#ECF4ED

border

#C7CEC8

text

#071008

muted

#7A7F7B

Preview Lab

Preview with #1B823B

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

Preview Lab → · Contrast checker → · Palette generator →