#42AC8D
Closest named color: Greeny Blue (#42B395). oklch(67.5% 0.108 170.5), rgb(66, 172, 141).
Aa
Black text reads best on this color (7.51:1).
About this color
#42AC8D is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 67%, its chroma 0.108 and its hue 170°. Its hue sits on the cool side of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.020 away. Black text reads best on it, at 7.51:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 7.51:1 |
| White text | 2.79:1 |
Values
| HEX | #42AC8D |
| RGB | rgb(66, 172, 141) |
| HSL | hsl(162, 45%, 47%) |
| OKLCH | oklch(67.5% 0.108 170.5) |
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 #42AC8D | 2.79:1 | Fails | Lc -58.8 | Large or bold text, headings |
| Black text on #42AC8D | 7.51:1 | AAA | Lc 50.5 | Large or bold text, headings |
| #42AC8D text on white | 2.79:1 | Fails | Lc 53.5 | Large or bold text, headings |
| #42AC8D text on black | 7.51:1 | AAA | Lc -48.3 | Large or bold text, headings |
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
#F0F7F4
oklch(97% 0.008 168.8)
-
Step 100
100
#DEEEE8
oklch(93.6% 0.019 171.5)
-
Step 200
200
#C2E2D5
oklch(88.6% 0.038 169)
-
Step 300
300
#94CFBA
oklch(80.8% 0.068 170.5)
-
Step 400
400 (this color)
#42AC8D
oklch(67.5% 0.108 170.5)
-
Step 500
500
#00A17F
oklch(63.1% 0.124 170.8)
-
Step 600
600
#00876A
oklch(55.5% 0.109 170.8)
-
Step 700
700
#007259
oklch(49.1% 0.097 170.7)
-
Step 800
800
#005D48
oklch(42.6% 0.084 170.6)
-
Step 900
900
#004E3C
oklch(37.7% 0.074 170.6)
-
Step 950
950
#002F23
oklch(27.2% 0.053 170.5)
#42AC8D 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) | #A7A18B | 0.110 |
| Deuteranopia (no green cones) | #98968F | 0.106 |
| Tritanopia (no blue cones) | #00ADA3 | 0.035 |
| Achromatopsia (no color) | #9B9B9B | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42AC8D
#42AC8D
oklch(67.5% 0.108 170.5)
- #C97A9F
#C97A9F
oklch(67.5% 0.108 350.8)
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 #42AC8D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.020
- Tea #65AB7C ΔE 0.033
- Dark Seafoam Green #3EAF76 ΔE 0.037
- Bluey Green #2BB179 ΔE 0.039
- Light Sea Green #20B2AA ΔE 0.040
- Jade #1FA774 ΔE 0.043
- Dull Teal #5F9E8F ΔE 0.046
- Dark Seafoam #1FB57A ΔE 0.047
Use #42AC8D 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.