#05AAA3
Closest named color: Light Sea Green (#20B2AA). oklch(66.6% 0.115 189.6), rgb(5, 170, 163).
Aa
Black text reads best on this color (7.28:1).
About this color
#05AAA3 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 67%, its chroma 0.115 and its hue 190°. Its hue sits on the cool side of the wheel. The nearest named color is Light Sea Green (#20B2AA), ΔE 0.025 away. Black text reads best on it, at 7.28:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.115) |
| Temperature | cool |
| Nearest name | Light Sea Green (#20B2AA) |
| Black text | 7.28:1 |
| White text | 2.88:1 |
Values
| HEX | #05AAA3 |
| RGB | rgb(5, 170, 163) |
| HSL | hsl(177, 94%, 34%) |
| OKLCH | oklch(66.6% 0.115 189.6) |
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 #05AAA3 | 2.88:1 | Fails | Lc -59.8 | Large or bold text, headings |
| Black text on #05AAA3 | 7.28:1 | AAA | Lc 49.6 | Large or bold text, headings |
| #05AAA3 text on white | 2.88:1 | Fails | Lc 54.5 | Large or bold text, headings |
| #05AAA3 text on black | 7.28:1 | AAA | Lc -47.4 | 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 500.
-
Step 50
50
#F0F7F6
oklch(97.1% 0.008 186.9)
-
Step 100
100
#DEEEEC
oklch(93.7% 0.017 187.9)
-
Step 200
200
#C3E0DD
oklch(88.5% 0.031 189)
-
Step 300
300
#97CDC8
oklch(80.9% 0.056 189)
-
Step 400
400
#55B3AC
oklch(70.8% 0.09 188.8)
-
Step 500
500 (this color)
#05AAA3
oklch(66.6% 0.115 189.6)
-
Step 600
600
#00857F
oklch(55.6% 0.096 189.2)
-
Step 700
700
#00706B
oklch(49.2% 0.085 189.4)
-
Step 800
800
#005C58
oklch(42.8% 0.074 189.6)
-
Step 900
900
#004C49
oklch(37.6% 0.065 190.2)
-
Step 950
950
#002E2B
oklch(27.1% 0.047 188)
#05AAA3 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) | #9FA0A3 | 0.121 |
| Deuteranopia (no green cones) | #8C92A4 | 0.114 |
| Tritanopia (no blue cones) | #00AFA8 | 0.015 |
| Achromatopsia (no color) | #989898 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #05AAA3
#05AAA3
oklch(66.6% 0.115 189.6)
- #CF7584
#CF7584
oklch(66.6% 0.114 9.9)
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 #05AAA3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Sea Green #20B2AA ΔE 0.025
- Persian Green #2A9D8F ΔE 0.040
- Greeny Blue #42B395 ΔE 0.045
- Blue Green #0F9B8E ΔE 0.047
- Sea #3C9992 ΔE 0.048
- Turquoise Blue #06B1C4 ΔE 0.049
- Topaz #13BBAF ΔE 0.049
- Dull Teal #5F9E8F ΔE 0.051
Use #05AAA3 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.