#429D99
Closest named color: Sea (#3C9992). oklch(64.1% 0.086 191.3), rgb(66, 157, 153).
Aa
Black text reads best on this color (6.51:1).
About this color
#429D99 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 64%, its chroma 0.086 and its hue 191°. Its hue sits on the cool side of the wheel. The nearest named color is Sea (#3C9992), ΔE 0.015 away. Black text reads best on it, at 6.51:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Sea (#3C9992) |
| Black text | 6.51:1 |
| White text | 3.22:1 |
Values
| HEX | #429D99 |
| RGB | rgb(66, 157, 153) |
| HSL | hsl(177, 41%, 44%) |
| OKLCH | oklch(64.1% 0.086 191.3) |
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 #429D99 | 3.22:1 | AA large text | Lc -64.7 | Content text, not long reading |
| Black text on #429D99 | 6.51:1 | AA | Lc 44.8 | Non-text elements, placeholder text |
| #429D99 text on white | 3.22:1 | AA large text | Lc 59.2 | Large or bold text, headings |
| #429D99 text on black | 6.51:1 | AA | Lc -42.5 | 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
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E1EDEC
oklch(93.7% 0.013 190.9)
-
Step 200
200
#C8DEDD
oklch(88.4% 0.023 193.4)
-
Step 300
300
#A2CAC7
oklch(80.9% 0.043 190.7)
-
Step 400
400
#6DAEAB
oklch(70.6% 0.067 192)
-
Step 500
500 (this color)
#429D99
oklch(64.1% 0.086 191.3)
-
Step 600
600
#0B8481
oklch(55.5% 0.093 192)
-
Step 700
700
#00706C
oklch(49.2% 0.085 190.4)
-
Step 800
800
#045B59
oklch(42.6% 0.072 192.2)
-
Step 900
900
#144B49
oklch(37.7% 0.056 191.6)
-
Step 950
950
#0E2C2B
oklch(27% 0.036 192.3)
#429D99 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) | #949699 | 0.090 |
| Deuteranopia (no green cones) | #868B9A | 0.085 |
| Tritanopia (no blue cones) | #00A19C | 0.024 |
| Achromatopsia (no color) | #8F8F8F | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #429D99
#429D99
oklch(64.1% 0.086 191.3)
- #BA767F
#BA767F
oklch(64% 0.086 11.2)
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 #429D99, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea #3C9992 ΔE 0.015
- Persian Green #2A9D8F ΔE 0.023
- Dull Teal #5F9E8F ΔE 0.028
- Grey Teal #5E9B8A ΔE 0.029
- Cadet Blue #5F9EA0 ΔE 0.029
- Blue Green #0F9B8E ΔE 0.031
- Dusty Teal #4C9085 ΔE 0.040
- Teal Green #0A9396 ΔE 0.042
Use #429D99 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.