#10BBC5
Closest named color: Turquoise Blue (#06B1C4). oklch(72.2% 0.121 201.7), rgb(16, 187, 197).
Aa
Black text reads best on this color (8.93:1).
About this color
#10BBC5 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 72%, its chroma 0.121 and its hue 202°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.029 away. Black text reads best on it, at 8.93:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.121) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 8.93:1 |
| White text | 2.34:1 |
Values
| HEX | #10BBC5 |
| RGB | rgb(16, 187, 197) |
| HSL | hsl(183, 85%, 42%) |
| OKLCH | oklch(72.2% 0.121 201.7) |
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 #10BBC5 | 2.34:1 | Fails | Lc -50.6 | Large or bold text, headings |
| Black text on #10BBC5 | 8.93:1 | AAA | Lc 58.2 | Large or bold text, headings |
| #10BBC5 text on white | 2.34:1 | Fails | Lc 45.7 | Large or bold text, headings |
| #10BBC5 text on black | 8.93:1 | AAA | Lc -56.3 | 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 400.
-
Step 50
50
#EEF8F8
oklch(97.2% 0.011 197)
-
Step 100
100
#DAEFF0
oklch(93.7% 0.022 200.2)
-
Step 200
200
#BAE2E5
oklch(88.5% 0.042 202)
-
Step 300
300
#84D0D5
oklch(81% 0.076 201.1)
-
Step 400
400 (this color)
#10BBC5
oklch(72.2% 0.121 201.7)
-
Step 500
500
#009CA5
oklch(63.1% 0.107 202)
-
Step 600
600
#00838B
oklch(55.5% 0.095 202.3)
-
Step 700
700
#006E75
oklch(49% 0.083 202.5)
-
Step 800
800
#005A60
oklch(42.6% 0.073 202.7)
-
Step 900
900
#004B50
oklch(37.6% 0.064 202.5)
-
Step 950
950
#002D30
oklch(27% 0.046 201.8)
#10BBC5 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) | #ABB2C6 | 0.121 |
| Deuteranopia (no green cones) | #95A2C6 | 0.112 |
| Tritanopia (no blue cones) | #00C3BE | 0.028 |
| Achromatopsia (no color) | #A9A9A9 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #10BBC5
#10BBC5
oklch(72.2% 0.121 201.7)
- #E78583
#E78583
oklch(72.2% 0.121 21.7)
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 #10BBC5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.029
- Topaz #13BBAF ΔE 0.033
- Light Sea Green #20B2AA ΔE 0.041
- Dark Turquoise #00CED1 ΔE 0.053
- Greeny Blue #42B395 ΔE 0.066
- Medium Turquoise #48D1CC ΔE 0.069
- Vivid Sky Blue #4CC9F0 ΔE 0.075
- Deep Sky Blue #00BFFF ΔE 0.084
Use #10BBC5 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.