#51CA94
Closest named color: Greenblue (#23C48B). oklch(75.6% 0.135 161.1), rgb(81, 202, 148).
Aa
Black text reads best on this color (10.22:1).
About this color
#51CA94 is a medium-light, moderately saturated green. In OKLCH its lightness is 76%, its chroma 0.135 and its hue 161°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Greenblue (#23C48B), ΔE 0.032 away. Black text reads best on it, at 10.22:1.
| Hue family | Greens |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.135) |
| Temperature | in between |
| Nearest name | Greenblue (#23C48B) |
| Black text | 10.22:1 |
| White text | 2.05:1 |
Values
| HEX | #51CA94 |
| RGB | rgb(81, 202, 148) |
| HSL | hsl(153, 53%, 55%) |
| OKLCH | oklch(75.6% 0.135 161.1) |
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 #51CA94 | 2.05:1 | Fails | Lc -44.2 | Non-text elements, placeholder text |
| Black text on #51CA94 | 10.22:1 | AAA | Lc 64.2 | Content text, not long reading |
| #51CA94 text on white | 2.05:1 | Fails | Lc 39.7 | Non-text elements, placeholder text |
| #51CA94 text on black | 10.22:1 | AAA | Lc -62.6 | 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 400.
-
Step 50
50
#EFF8F3
oklch(97.1% 0.012 162.1)
-
Step 100
100
#DDEFE5
oklch(93.6% 0.023 161.7)
-
Step 200
200
#BFE3CF
oklch(88.4% 0.047 161)
-
Step 300
300
#8FD2AF
oklch(80.9% 0.084 161)
-
Step 400
400 (this color)
#51CA94
oklch(75.6% 0.135 161.1)
-
Step 500
500
#00A36D
oklch(63.2% 0.141 160.9)
-
Step 600
600
#00895B
oklch(55.6% 0.124 161)
-
Step 700
700
#00734C
oklch(49.1% 0.109 161.2)
-
Step 800
800
#005E3E
oklch(42.6% 0.094 161.6)
-
Step 900
900
#004F33
oklch(37.8% 0.084 161.3)
-
Step 950
950
#002F1D
oklch(27% 0.059 161.7)
#51CA94 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) | #C7BC91 | 0.128 |
| Deuteranopia (no green cones) | #B7B097 | 0.125 |
| Tritanopia (no blue cones) | #10C9BB | 0.057 |
| Achromatopsia (no color) | #B5B5B5 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51CA94
#51CA94
oklch(75.6% 0.135 161.1)
- #E98CC9
#E98CC9
oklch(75.6% 0.135 341.1)
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 #51CA94, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greenblue #23C48B ΔE 0.032
- Emerald #06D6A0 ΔE 0.035
- Medium Aquamarine #66CDAA ΔE 0.036
- Soft Green #6FC276 ΔE 0.038
- Green Blue #01C08D ΔE 0.044
- Dark Mint #48C072 ΔE 0.047
- Seaweed #18D17B ΔE 0.051
- Dark Mint Green #20C073 ΔE 0.057
Use #51CA94 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.