#03D299
Closest named color: Emerald (#06D6A0). oklch(76.5% 0.161 165), rgb(3, 210, 153).
Aa
Black text reads best on this color (10.68:1).
About this color
#03D299 is a medium-light, vivid green. In OKLCH its lightness is 77%, its chroma 0.161 and its hue 165°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Emerald (#06D6A0), ΔE 0.013 away. Black text reads best on it, at 10.68:1.
| Hue family | Greens |
| Lightness | medium-light (77%) |
| Chroma | vivid (0.161) |
| Temperature | in between |
| Nearest name | Emerald (#06D6A0) |
| Black text | 10.68:1 |
| White text | 1.96:1 |
Values
| HEX | #03D299 |
| RGB | rgb(3, 210, 153) |
| HSL | hsl(163, 97%, 42%) |
| OKLCH | oklch(76.5% 0.161 165) |
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 #03D299 | 1.96:1 | Fails | Lc -41.5 | Non-text elements, placeholder text |
| Black text on #03D299 | 10.68:1 | AAA | Lc 66.7 | Content text, not long reading |
| #03D299 text on white | 1.96:1 | Fails | Lc 37.2 | Non-text elements, placeholder text |
| #03D299 text on black | 10.68:1 | AAA | Lc -65.3 | 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
#E9FAF2
oklch(97% 0.021 166.1)
-
Step 100
100
#CEF4E2
oklch(93.5% 0.046 165.1)
-
Step 200
200
#A0ECCB
oklch(88.4% 0.088 165.5)
-
Step 300
300 (this color)
#03D299
oklch(76.5% 0.161 165)
-
Step 400
400
#00BD89
oklch(70.7% 0.149 164.9)
-
Step 500
500
#00A275
oklch(63.1% 0.133 165)
-
Step 600
600
#008862
oklch(55.5% 0.117 165.2)
-
Step 700
700
#007352
oklch(49.2% 0.104 164.9)
-
Step 800
800
#005E42
oklch(42.7% 0.09 164.7)
-
Step 900
900
#004E37
oklch(37.6% 0.079 165.5)
-
Step 950
950
#002F1F
oklch(27% 0.057 164.4)
#03D299 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) | #CDC296 | 0.157 |
| Deuteranopia (no green cones) | #B9B39D | 0.153 |
| Tritanopia (no blue cones) | #00D2C2 | 0.058 |
| Achromatopsia (no color) | #B9B9B9 | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #03D299
#03D299
oklch(76.5% 0.161 165)
- #F985CA
#F985CA
oklch(76.5% 0.161 345)
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 #03D299, closest first.
No curated palette has a color within ΔE 0.04 of #03D299.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Emerald #06D6A0 ΔE 0.013
- Seaweed #18D17B ΔE 0.038
- Greenblue #23C48B ΔE 0.038
- Aqua Green #12E193 ΔE 0.047
- Green Blue #01C08D ΔE 0.051
- Medium Aquamarine #66CDAA ΔE 0.053
- Dark Mint #48C072 ΔE 0.057
- Algae Green #21C36F ΔE 0.058
Use #03D299 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.