#557D21#557D21

#557D21 is a mid, vivid yellow-green. Relative luminance 0.167; OKLCH L 54.1% C 0.128 H 130.3°. Best body text is #FFFFFF at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#557D21
RGB	rgb(85, 125, 33)
HSL	hsl(86, 58%, 31%)
HSV	hsv(86, 74%, 49%)
CMYK	cmyk(32%, 0%, 73.6%, 51%)
CIE-LAB	lab(47.89, -29.14, 43.31)
CIE-LCH	lch(47.89, 52.20, 123.93°)
OKLab	oklab(54.09% -0.0826 0.0975)
OKLCH	oklch(54.09% 0.128 130.3)
XYZ	xyz(11.3544, 16.7080, 4.0653)
Luminance	0.1671 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557D21 #49217D

analogous

#7D7721 #557D21 #277D21

triadic

#557D21 #21557D #7D2155

tetradic

#557D21 #217D77 #49217D #7D2127

square

#557D21 #217D77 #49217D #7D2127

split-complementary

#557D21 #21277D #77217D

monochromatic

#131C07 #344D14 #557D21 #76AD2E #95CF49

Accessibility & contrast

On white

4.84

#557D21 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.34

#557D21 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #557D21

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557D21	#FFFFFF	#000000	##FFFFFF
##557D21	1.00	4.84	4.34	4.84
#FFFFFF	4.84	1.00	21.00	1.00
#000000	4.34	21.00	1.00	21.00
##FFFFFF	4.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#837411

Deuteranopia (green-blind)

#7D7129

Tritanopia (blue-blind)

#57776B

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #557d21;
/* rgb */ color: rgb(85, 125, 33);
/* oklch */ color: oklch(54.1% 0.128 130.3);

Tailwind

colors: {
  custom: {
    50: '#88a363',
    500: '#557d21',
    950: '#000000',
  },
}

SCSS

$custom: #557d21;
$custom-light: #88a363;
$custom-dark: #000000;

JSON

{
  "hex": "#557d21",
  "rgb": {
    "r": 85,
    "g": 125,
    "b": 33
  },
  "hsl": {
    "h": 86.087,
    "s": 58.228,
    "l": 30.98
  },
  "oklch": {
    "l": 0.54093,
    "c": 0.12779,
    "h": 130.3
  },
  "luminance": 0.16708
}

Semantic roles & 50–950 ramp

primary

#557D21

secondary

#764AB0

accent

#46E18A

background

#F8FAF6

surface

#F0F3EB

border

#CBCDC6

text

#0C0F05

muted

#7D7F7A

Preview Lab

Preview with #557D21

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

Preview Lab → · Contrast checker → · Palette generator →