#00A666
Closest named color: Jade (#1FA774). oklch(63.8% 0.151 157.4), rgb(0, 166, 102).
Aa
Black text reads best on this color (6.64:1).
About this color
#00A666 is a medium-light, vivid green. In OKLCH its lightness is 64%, its chroma 0.151 and its hue 157°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jade (#1FA774), ΔE 0.021 away. Black text reads best on it, at 6.64:1.
| Hue family | Greens |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.151) |
| Temperature | in between |
| Nearest name | Jade (#1FA774) |
| Black text | 6.64:1 |
| White text | 3.15:1 |
Values
| HEX | #00A666 |
| RGB | rgb(0, 166, 102) |
| HSL | hsl(157, 100%, 33%) |
| OKLCH | oklch(63.8% 0.151 157.4) |
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 #00A666 | 3.15:1 | AA large text | Lc -63.4 | Content text, not long reading |
| Black text on #00A666 | 6.64:1 | AA | Lc 46.0 | Large or bold text, headings |
| #00A666 text on white | 3.15:1 | AA large text | Lc 58.0 | Large or bold text, headings |
| #00A666 text on black | 6.64:1 | AA | Lc -43.7 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F0F8F3
oklch(97.2% 0.011 158.8)
-
Step 100
100
#DFEEE4
oklch(93.5% 0.021 156.8)
-
Step 200
200
#C4E2CF
oklch(88.6% 0.041 157.7)
-
Step 300
300
#99D0AE
oklch(81% 0.075 157.2)
-
Step 400
400
#59B783
oklch(70.8% 0.119 157.2)
-
Step 500
500 (this color)
#00A666
oklch(63.8% 0.151 157.4)
-
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
#012F1A
oklch(26.9% 0.062 157.8)
#00A666 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) | #A59862 | 0.138 |
| Deuteranopia (no green cones) | #948C6A | 0.134 |
| Tritanopia (no blue cones) | #00A596 | 0.070 |
| Achromatopsia (no color) | #919191 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00A666
#00A666
oklch(63.8% 0.151 157.4)
- #C464AC
#C464AC
oklch(63.9% 0.15 337.5)
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 #00A666, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jade #1FA774 ΔE 0.021
- Seaweed Green #35AD6B ΔE 0.029
- Jade Green #2BAF6A ΔE 0.030
- Bluey Green #2BB179 ΔE 0.040
- Dark Seafoam Green #3EAF76 ΔE 0.041
- Algae #54AC68 ΔE 0.044
- Mid Green #50A747 ΔE 0.045
- Green Teal #0CB577 ΔE 0.045
Use #00A666 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.