#51D893
Closest named color: Emerald (#06D6A0). oklch(79.1% 0.154 157.4), rgb(81, 216, 147).
Aa
Black text reads best on this color (11.59:1).
About this color
#51D893 is a light, vivid green. In OKLCH its lightness is 79%, its chroma 0.154 and its hue 157°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Emerald (#06D6A0), ΔE 0.029 away. Black text reads best on it, at 11.59:1.
| Hue family | Greens |
| Lightness | light (79%) |
| Chroma | vivid (0.154) |
| Temperature | in between |
| Nearest name | Emerald (#06D6A0) |
| Black text | 11.59:1 |
| White text | 1.81:1 |
Values
| HEX | #51D893 |
| RGB | rgb(81, 216, 147) |
| HSL | hsl(149, 63%, 58%) |
| OKLCH | oklch(79.1% 0.154 157.4) |
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 #51D893 | 1.81:1 | Fails | Lc -37.4 | Non-text elements, placeholder text |
| Black text on #51D893 | 11.59:1 | AAA | Lc 70.5 | Content text, not long reading |
| #51D893 text on white | 1.81:1 | Fails | Lc 33.4 | Non-text elements, placeholder text |
| #51D893 text on black | 11.59:1 | AAA | Lc -69.2 | Content text, not long reading |
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 300.
-
Step 50
50
#EBFAF0
oklch(97.1% 0.021 156.8)
-
Step 100
100
#D2F3DE
oklch(93.5% 0.044 157.5)
-
Step 200
200
#AAEBC3
oklch(88.6% 0.086 157.1)
-
Step 300
300 (this color)
#51D893
oklch(79.1% 0.154 157.4)
-
Step 400
400
#00BF76
oklch(70.8% 0.167 157.4)
-
Step 500
500
#00A364
oklch(63% 0.149 157.4)
-
Step 600
600
#008954
oklch(55.5% 0.13 157.7)
-
Step 700
700
#007446
oklch(49.2% 0.116 157.5)
-
Step 800
800
#005F38
oklch(42.7% 0.101 157.3)
-
Step 900
900
#004F2E
oklch(37.6% 0.089 157.5)
-
Step 950
950
#002F1A
oklch(26.9% 0.063 158.2)
#51D893 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) | #D6C88F | 0.141 |
| Deuteranopia (no green cones) | #C4BB97 | 0.138 |
| Tritanopia (no blue cones) | #00D6C6 | 0.072 |
| Achromatopsia (no color) | #C0C0C0 | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51D893
#51D893
oklch(79.1% 0.154 157.4)
- #F992DE
#F992DE
oklch(79.1% 0.154 337.5)
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 #51D893, closest first.
No curated palette has a color within ΔE 0.04 of #51D893.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Emerald #06D6A0 ΔE 0.029
- Aqua Green #12E193 ΔE 0.031
- Seaweed #18D17B ΔE 0.044
- Weird Green #3AE57F ΔE 0.051
- Medium Aquamarine #66CDAA ΔE 0.053
- Aqua Marine #2EE8BB ΔE 0.056
- Soft Green #6FC276 ΔE 0.060
- Greenblue #23C48B ΔE 0.064
Use #51D893 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.