#42DBA1
Closest named color: Emerald (#06D6A0). oklch(79.8% 0.152 163.3), rgb(66, 219, 161).
Aa
Black text reads best on this color (11.87:1).
About this color
#42DBA1 is a light, vivid green. In OKLCH its lightness is 80%, its chroma 0.152 and its hue 163°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Emerald (#06D6A0), ΔE 0.023 away. Black text reads best on it, at 11.87:1.
| Hue family | Greens |
| Lightness | light (80%) |
| Chroma | vivid (0.152) |
| Temperature | in between |
| Nearest name | Emerald (#06D6A0) |
| Black text | 11.87:1 |
| White text | 1.76:1 |
Values
| HEX | #42DBA1 |
| RGB | rgb(66, 219, 161) |
| HSL | hsl(157, 68%, 56%) |
| OKLCH | oklch(79.8% 0.152 163.3) |
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 #42DBA1 | 1.76:1 | Fails | Lc -36.0 | Non-text elements, placeholder text |
| Black text on #42DBA1 | 11.87:1 | AAA | Lc 71.8 | Content text, not long reading |
| #42DBA1 text on white | 1.76:1 | Fails | Lc 32.0 | Non-text elements, placeholder text |
| #42DBA1 text on black | 11.87:1 | AAA | Lc -70.7 | 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
#EAFAF2
oklch(97.1% 0.02 164.6)
-
Step 100
100
#D0F4E2
oklch(93.6% 0.045 163.8)
-
Step 200
200
#A5EBC9
oklch(88.4% 0.085 163)
-
Step 300
300 (this color)
#42DBA1
oklch(79.8% 0.152 163.3)
-
Step 400
400
#00BD85
oklch(70.6% 0.152 163.2)
-
Step 500
500
#00A272
oklch(63% 0.135 163.5)
-
Step 600
600
#00885F
oklch(55.5% 0.119 163.5)
-
Step 700
700
#00734F
oklch(49.1% 0.106 163)
-
Step 800
800
#005E40
oklch(42.6% 0.092 163.1)
-
Step 900
900
#004F35
oklch(37.8% 0.082 162.9)
-
Step 950
950
#002F1E
oklch(27% 0.058 163)
#42DBA1 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) | #D7CB9E | 0.148 |
| Deuteranopia (no green cones) | #C3BDA5 | 0.143 |
| Tritanopia (no blue cones) | #00DBCB | 0.058 |
| Achromatopsia (no color) | #C3C3C3 | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42DBA1
#42DBA1
oklch(79.8% 0.152 163.3)
- #FF94D6
#FF94D6
oklch(79.8% 0.15 343.3)
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 #42DBA1, closest first.
No curated palette has a color within ΔE 0.04 of #42DBA1.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Emerald #06D6A0 ΔE 0.023
- Aqua Green #12E193 ΔE 0.032
- Aqua Marine #2EE8BB ΔE 0.041
- Medium Aquamarine #66CDAA ΔE 0.049
- Seaweed #18D17B ΔE 0.056
- Weird Green #3AE57F ΔE 0.059
- Seafoam Blue #78D1B6 ΔE 0.060
- Turquoise #40E0D0 ΔE 0.063
Use #42DBA1 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.