#10BBC4
Closest named color: Turquoise Blue (#06B1C4). oklch(72.1% 0.121 201), rgb(16, 187, 196).
Aa
Black text reads best on this color (8.92:1).
About this color
#10BBC4 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 72%, its chroma 0.121 and its hue 201°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.030 away. Black text reads best on it, at 8.92:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.121) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 8.92:1 |
| White text | 2.35:1 |
Values
| HEX | #10BBC4 |
| RGB | rgb(16, 187, 196) |
| HSL | hsl(183, 85%, 42%) |
| OKLCH | oklch(72.1% 0.121 201) |
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 #10BBC4 | 2.35:1 | Fails | Lc -50.7 | Large or bold text, headings |
| Black text on #10BBC4 | 8.92:1 | AAA | Lc 58.2 | Large or bold text, headings |
| #10BBC4 text on white | 2.35:1 | Fails | Lc 45.8 | Large or bold text, headings |
| #10BBC4 text on black | 8.92:1 | 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
#BAE2E4
oklch(88.5% 0.042 200.2)
-
Step 300
300
#84D0D5
oklch(81% 0.076 201.1)
-
Step 400
400 (this color)
#10BBC4
oklch(72.1% 0.121 201)
-
Step 500
500
#009CA4
oklch(63% 0.107 201.2)
-
Step 600
600
#00838A
oklch(55.5% 0.094 201.4)
-
Step 700
700
#006E74
oklch(49% 0.083 201.4)
-
Step 800
800
#005B5F
oklch(42.8% 0.073 200)
-
Step 900
900
#004B50
oklch(37.6% 0.064 202.5)
-
Step 950
950
#002D30
oklch(27% 0.046 201.8)
#10BBC4 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) | #ACB2C5 | 0.123 |
| Deuteranopia (no green cones) | #96A2C5 | 0.114 |
| Tritanopia (no blue cones) | #00C3BD | 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°).
- #10BBC4
#10BBC4
oklch(72.1% 0.121 201)
- #E78584
#E78584
oklch(72.2% 0.121 21.1)
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 #10BBC4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.030
- Topaz #13BBAF ΔE 0.031
- Light Sea Green #20B2AA ΔE 0.040
- Dark Turquoise #00CED1 ΔE 0.053
- Greeny Blue #42B395 ΔE 0.064
- Medium Turquoise #48D1CC ΔE 0.069
- Vivid Sky Blue #4CC9F0 ΔE 0.076
- Cadet Blue #5F9EA0 ΔE 0.085
Use #10BBC4 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.