#1BB431#1BB431

#1BB431 is a light, highly saturated green. Relative luminance 0.331; OKLCH L 67.1% C 0.207 H 144.3°. Best body text is #000000 at 7.62:1 contrast (WCAG AA passes).

Color values

HEX	#1BB431
RGB	rgb(27, 180, 49)
HSL	hsl(129, 74%, 41%)
HSV	hsv(129, 85%, 71%)
CMYK	cmyk(85%, 0%, 72.8%, 29.4%)
CIE-LAB	lab(64.24, -62.35, 53.27)
CIE-LCH	lch(64.24, 82.00, 139.49°)
OKLab	oklab(67.13% -0.1683 0.1211)
OKLCH	oklch(67.13% 0.207 144.3)
XYZ	xyz(17.3264, 33.0951, 8.3800)
Luminance	0.3310 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1BB431 #B41B9E

analogous

#52B41B #1BB431 #1BB47D

triadic

#1BB431 #311BB4 #B4311B

tetradic

#1BB431 #1B52B4 #B41B9E #B47D1B

square

#1BB431 #1B52B4 #B41B9E #B47D1B

split-complementary

#1BB431 #7D1BB4 #B41B52

monochromatic

#0B4A14 #137F23 #1BB431 #2DDF46 #62E775

Accessibility & contrast

On white

2.76

#1BB431 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.62

#1BB431 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #1BB431

7.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1BB431	#FFFFFF	#000000	##000000
##1BB431	1.00	2.76	7.62	7.62
#FFFFFF	2.76	1.00	21.00	21.00
#000000	7.62	21.00	1.00	1.00
##000000	7.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B7A21A

Deuteranopia (green-blind)

#A8973F

Tritanopia (blue-blind)

#00AF9A

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #1bb431;
/* rgb */ color: rgb(27, 180, 49);
/* oklch */ color: oklch(67.1% 0.207 144.3);

Tailwind

colors: {
  custom: {
    50: '#77cc71',
    500: '#1bb431',
    950: '#000000',
  },
}

SCSS

$custom: #1bb431;
$custom-light: #77cc71;
$custom-dark: #000000;

JSON

{
  "hex": "#1bb431",
  "rgb": {
    "r": 27,
    "g": 180,
    "b": 49
  },
  "hsl": {
    "h": 128.627,
    "s": 73.913,
    "l": 40.588
  },
  "oklch": {
    "l": 0.6713,
    "c": 0.20736,
    "h": 144.3
  },
  "luminance": 0.33097
}

Semantic roles & 50–950 ramp

primary

#1BB431

secondary

#CC5FBC

accent

#37D6F1

background

#F8FCF7

surface

#EFF9ED

border

#CAD2C8

text

#0B1308

muted

#7C827B

Preview Lab

Preview with #1BB431

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

Preview Lab → · Contrast checker → · Palette generator →