#1F9E2B#1F9E2B

#1F9E2B is a mid, vivid green. Relative luminance 0.249; OKLCH L 61.1% C 0.186 H 143.9°. Best body text is #000000 at 5.98:1 contrast (WCAG AA passes).

Color values

HEX	#1F9E2B
RGB	rgb(31, 158, 43)
HSL	hsl(126, 67%, 37%)
HSV	hsv(126, 80%, 62%)
CMYK	cmyk(80.4%, 0%, 72.8%, 38%)
CIE-LAB	lab(57.00, -55.53, 48.10)
CIE-LCH	lch(57.00, 73.47, 139.10°)
OKLab	oklab(61.11% -0.1502 0.1095)
OKLCH	oklch(61.11% 0.186 143.9)
XYZ	xyz(13.2271, 24.9178, 6.3975)
Luminance	0.2492 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F9E2B #9E1F92

analogous

#539E1F #1F9E2B #1F9E6A

triadic

#1F9E2B #2B1F9E #9E2B1F

tetradic

#1F9E2B #1F539E #9E1F92 #9E6A1F

square

#1F9E2B #1F539E #9E1F92 #9E6A1F

split-complementary

#1F9E2B #6A1F9E #9E1F53

monochromatic

#0B380F #156B1D #1F9E2B #29D139 #59DE66

Accessibility & contrast

On white

3.51

#1F9E2B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.98

#1F9E2B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1F9E2B

5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F9E2B	#FFFFFF	#000000	##000000
##1F9E2B	1.00	3.51	5.98	5.98
#FFFFFF	3.51	1.00	21.00	21.00
#000000	5.98	21.00	1.00	1.00
##000000	5.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A18F18

Deuteranopia (green-blind)

#938537

Tritanopia (blue-blind)

#009987

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #1f9e2b;
/* rgb */ color: rgb(31, 158, 43);
/* oklch */ color: oklch(61.1% 0.186 143.9);

Tailwind

colors: {
  custom: {
    50: '#73bc6b',
    500: '#1f9e2b',
    950: '#000000',
  },
}

SCSS

$custom: #1f9e2b;
$custom-light: #73bc6b;
$custom-dark: #000000;

JSON

{
  "hex": "#1f9e2b",
  "rgb": {
    "r": 31,
    "g": 158,
    "b": 43
  },
  "hsl": {
    "h": 125.669,
    "s": 67.196,
    "l": 37.059
  },
  "oklch": {
    "l": 0.61106,
    "c": 0.18585,
    "h": 143.9
  },
  "luminance": 0.24919
}

Semantic roles & 50–950 ramp

primary

#1F9E2B

secondary

#C256B8

accent

#3EDAEA

background

#F7FBF6

surface

#EEF6EC

border

#C9D0C7

text

#091207

muted

#7B817A

Preview Lab

Preview with #1F9E2B

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

Preview Lab → · Contrast checker → · Palette generator →