#10AAA4
Closest named color: Light Sea Green (#20B2AA). oklch(66.7% 0.113 190.3), rgb(16, 170, 164).
Aa
Black text reads best on this color (7.30:1).
About this color
#10AAA4 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 67%, its chroma 0.113 and its hue 190°. Its hue sits on the cool side of the wheel. The nearest named color is Light Sea Green (#20B2AA), ΔE 0.024 away. Black text reads best on it, at 7.30:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.113) |
| Temperature | cool |
| Nearest name | Light Sea Green (#20B2AA) |
| Black text | 7.30:1 |
| White text | 2.87:1 |
Values
| HEX | #10AAA4 |
| RGB | rgb(16, 170, 164) |
| HSL | hsl(178, 83%, 36%) |
| OKLCH | oklch(66.7% 0.113 190.3) |
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 #10AAA4 | 2.87:1 | Fails | Lc -59.7 | Large or bold text, headings |
| Black text on #10AAA4 | 7.30:1 | AAA | Lc 49.6 | Large or bold text, headings |
| #10AAA4 text on white | 2.87:1 | Fails | Lc 54.4 | Large or bold text, headings |
| #10AAA4 text on black | 7.30:1 | 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
#DFEDEC
oklch(93.5% 0.015 191.8)
-
Step 200
200
#C3E0DE
oklch(88.5% 0.031 191.5)
-
Step 300
300
#98CDC9
oklch(81% 0.055 190.3)
-
Step 400
400
#56B2AD
oklch(70.6% 0.088 190.6)
-
Step 500
500 (this color)
#10AAA4
oklch(66.7% 0.113 190.3)
-
Step 600
600
#008580
oklch(55.7% 0.096 190.1)
-
Step 700
700
#00706C
oklch(49.2% 0.085 190.4)
-
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
#002D2C
oklch(26.9% 0.046 192.5)
#10AAA4 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) | #9FA0A4 | 0.119 |
| Deuteranopia (no green cones) | #8C92A5 | 0.112 |
| Tritanopia (no blue cones) | #00AFA8 | 0.014 |
| Achromatopsia (no color) | #989898 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #10AAA4
#10AAA4
oklch(66.7% 0.113 190.3)
- #CF7684
#CF7684
oklch(66.7% 0.112 10.5)
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 #10AAA4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Sea Green #20B2AA ΔE 0.024
- Persian Green #2A9D8F ΔE 0.041
- Greeny Blue #42B395 ΔE 0.045
- Turquoise Blue #06B1C4 ΔE 0.047
- Blue Green #0F9B8E ΔE 0.048
- Sea #3C9992 ΔE 0.048
- Topaz #13BBAF ΔE 0.049
- Cadet Blue #5F9EA0 ΔE 0.050
Use #10AAA4 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.