#296D66
Closest named color: Dark Aquamarine (#017371). oklch(49% 0.069 185.9), rgb(41, 109, 102).
Aa
White text reads best on this color (6.04:1).
About this color
#296D66 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 49%, its chroma 0.069 and its hue 186°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.023 away. White text reads best on it, at 6.04:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (49%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.47:1 |
| White text | 6.04:1 |
Values
| HEX | #296D66 |
| RGB | rgb(41, 109, 102) |
| HSL | hsl(174, 45%, 29%) |
| OKLCH | oklch(49% 0.069 185.9) |
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 #296D66 | 6.04:1 | AA | Lc -85.2 | Fine for body text |
| Black text on #296D66 | 3.47:1 | AA large text | Lc 24.1 | Dividers and decoration only |
| #296D66 text on white | 6.04:1 | AA | Lc 80.0 | Fine for body text |
| #296D66 text on black | 3.47:1 | AA large text | Lc -21.8 | Dividers and decoration only |
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 700.
-
Step 50
50
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEB
oklch(93.6% 0.01 189.1)
-
Step 200
200
#CCDDDB
oklch(88.4% 0.018 188.3)
-
Step 300
300
#AAC8C4
oklch(80.9% 0.033 186.7)
-
Step 400
400
#7AACA5
oklch(70.7% 0.054 185.2)
-
Step 500
500
#56978F
oklch(63.1% 0.068 185.5)
-
Step 600
600
#38817A
oklch(55.5% 0.073 186.8)
-
Step 700
700 (this color)
#296D66
oklch(49% 0.069 185.9)
-
Step 800
800
#245953
oklch(42.6% 0.057 185.3)
-
Step 900
900
#234945
oklch(37.6% 0.044 186.6)
-
Step 950
950
#152B28
oklch(27% 0.029 184.5)
#296D66 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) | #686766 | 0.074 |
| Deuteranopia (no green cones) | #5D5F67 | 0.070 |
| Tritanopia (no blue cones) | #006F6B | 0.017 |
| Achromatopsia (no color) | #636363 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #296D66
#296D66
oklch(49% 0.069 185.9)
- #824F5A
#824F5A
oklch(48.9% 0.07 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 #296D66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.023
- Dark Aqua #05696B ΔE 0.024
- Deep Turquoise #017374 ΔE 0.025
- Dark Green Blue #1F6357 ΔE 0.037
- Bluegreen #017A79 ΔE 0.042
- Deep Aqua #08787F ΔE 0.043
- Petrol #005F6A ΔE 0.054
- Slate #516572 ΔE 0.055
Use #296D66 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.