#429E8B
Closest named color: Persian Green (#2A9D8F). oklch(63.8% 0.092 177.4), rgb(66, 158, 139).
Aa
Black text reads best on this color (6.49:1).
About this color
#429E8B is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 64%, its chroma 0.092 and its hue 177°. Its hue sits on the cool side of the wheel. The nearest named color is Persian Green (#2A9D8F), ΔE 0.015 away. Black text reads best on it, at 6.49:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Persian Green (#2A9D8F) |
| Black text | 6.49:1 |
| White text | 3.23:1 |
Values
| HEX | #429E8B |
| RGB | rgb(66, 158, 139) |
| HSL | hsl(168, 41%, 44%) |
| OKLCH | oklch(63.8% 0.092 177.4) |
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 #429E8B | 3.23:1 | AA large text | Lc -64.8 | Content text, not long reading |
| Black text on #429E8B | 6.49:1 | AA | Lc 44.7 | Non-text elements, placeholder text |
| #429E8B text on white | 3.23:1 | AA large text | Lc 59.4 | Large or bold text, headings |
| #429E8B text on black | 6.49:1 | AA | Lc -42.4 | 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
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E1EDEA
oklch(93.6% 0.013 179.5)
-
Step 200
200
#C9DFD9
oklch(88.6% 0.025 177.6)
-
Step 300
300
#A2CBC0
oklch(80.9% 0.046 176.9)
-
Step 400
400
#6DB0A0
oklch(70.8% 0.073 177.2)
-
Step 500
500 (this color)
#429E8B
oklch(63.8% 0.092 177.4)
-
Step 600
600
#0D8673
oklch(55.6% 0.1 177.8)
-
Step 700
700
#007160
oklch(49.1% 0.091 177.4)
-
Step 800
800
#055C4E
oklch(42.5% 0.077 177.4)
-
Step 900
900
#144C41
oklch(37.7% 0.06 177.1)
-
Step 950
950
#0E2D26
oklch(27.1% 0.039 176)
#429E8B 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) | #98958A | 0.097 |
| Deuteranopia (no green cones) | #8A8B8C | 0.092 |
| Tritanopia (no blue cones) | #00A098 | 0.027 |
| Achromatopsia (no color) | #8F8F8F | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #429E8B
#429E8B
oklch(63.8% 0.092 177.4)
- #B9748C
#B9748C
oklch(63.9% 0.092 357.6)
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 #429E8B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Persian Green #2A9D8F ΔE 0.015
- Sea #3C9992 ΔE 0.022
- Grey Teal #5E9B8A ΔE 0.024
- Blue Green #0F9B8E ΔE 0.026
- Dull Teal #5F9E8F ΔE 0.027
- Ocean Green #3D9973 ΔE 0.035
- Dusty Teal #4C9085 ΔE 0.040
- Cadet Blue #5F9EA0 ΔE 0.044
Use #429E8B 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.