#54C559
Closest named color: Algae Green (#21C36F). oklch(73.4% 0.18 144.2), rgb(84, 197, 89).
Aa
Black text reads best on this color (9.50:1).
About this color
#54C559 is a medium-light, vivid green. In OKLCH its lightness is 73%, its chroma 0.180 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Algae Green (#21C36F), ΔE 0.033 away. Black text reads best on it, at 9.50:1.
| Hue family | Greens |
| Lightness | medium-light (73%) |
| Chroma | vivid (0.180) |
| Temperature | in between |
| Nearest name | Algae Green (#21C36F) |
| Black text | 9.50:1 |
| White text | 2.20:1 |
Values
| HEX | #54C559 |
| RGB | rgb(84, 197, 89) |
| HSL | hsl(123, 49%, 55%) |
| OKLCH | oklch(73.4% 0.18 144.2) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #54C559 | 2.20:1 | Fails | Lc -47.9 | Large or bold text, headings |
| Black text on #54C559 | 9.50:1 | AAA | Lc 60.8 | Content text, not long reading |
| #54C559 text on white | 2.20:1 | Fails | Lc 43.1 | Non-text elements, placeholder text |
| #54C559 text on black | 9.50:1 | AAA | Lc -59.0 | Large or bold text, headings |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 400.
-
Step 50
50
#F0F8EF
oklch(97.1% 0.015 142.2)
-
Step 100
100
#DDF0DD
oklch(93.6% 0.032 145.3)
-
Step 200
200
#C1E5C0
oklch(88.6% 0.063 144.3)
-
Step 300
300
#93D492
oklch(80.9% 0.113 144.1)
-
Step 400
400 (this color)
#54C559
oklch(73.4% 0.18 144.2)
-
Step 500
500
#00A624
oklch(63% 0.203 144.2)
-
Step 600
600
#008C1D
oklch(55.6% 0.179 144.2)
-
Step 700
700
#007617
oklch(49.1% 0.158 144.3)
-
Step 800
800
#006111
oklch(42.8% 0.138 144.2)
-
Step 900
900
#00510C
oklch(37.8% 0.122 144.2)
-
Step 950
950
#003005
oklch(26.9% 0.086 144.4)
#54C559 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #C8B44F | 0.134 |
| Deuteranopia (no green cones) | #BAAB61 | 0.133 |
| Tritanopia (no blue cones) | #40C0AD | 0.112 |
| Achromatopsia (no color) | #AEAEAE | 0.181 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #54C559
#54C559
oklch(73.4% 0.18 144.2)
- #DF7DE8
#DF7DE8
oklch(73.5% 0.18 324.1)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #54C559, closest first.
No curated palette has a color within ΔE 0.04 of #54C559.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Algae Green #21C36F ΔE 0.033
- Dark Mint #48C072 ΔE 0.035
- Apple #6ECB3C ΔE 0.038
- Shamrock Green #02C14D ΔE 0.038
- Turtle Green #75B84F ΔE 0.040
- Dark Mint Green #20C073 ΔE 0.042
- Seaweed #18D17B ΔE 0.042
- Leafy Green #51B73B ΔE 0.043
Use #54C559 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.