#4DC1B0
Closest named color: Topaz (#13BBAF). oklch(74.1% 0.107 182), rgb(77, 193, 176).
Aa
Black text reads best on this color (9.57:1).
About this color
#4DC1B0 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 74%, its chroma 0.107 and its hue 182°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.032 away. Black text reads best on it, at 9.57:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 9.57:1 |
| White text | 2.19:1 |
Values
| HEX | #4DC1B0 |
| RGB | rgb(77, 193, 176) |
| HSL | hsl(171, 48%, 53%) |
| OKLCH | oklch(74.1% 0.107 182) |
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 #4DC1B0 | 2.19:1 | Fails | Lc -47.6 | Large or bold text, headings |
| Black text on #4DC1B0 | 9.57:1 | AAA | Lc 61.1 | Content text, not long reading |
| #4DC1B0 text on white | 2.19:1 | Fails | Lc 42.9 | Non-text elements, placeholder text |
| #4DC1B0 text on black | 9.57:1 | AAA | Lc -59.3 | 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
#EFF7F6
oklch(97% 0.009 188.1)
-
Step 100
100
#DDEEEB
oklch(93.6% 0.018 184.3)
-
Step 200
200
#BFE2DB
oklch(88.6% 0.038 182)
-
Step 300
300
#90CFC4
oklch(80.9% 0.066 182.5)
-
Step 400
400 (this color)
#4DC1B0
oklch(74.1% 0.107 182)
-
Step 500
500
#009F8F
oklch(63.1% 0.113 182.5)
-
Step 600
600
#008678
oklch(55.6% 0.1 182.2)
-
Step 700
700
#007164
oklch(49.2% 0.089 181.2)
-
Step 800
800
#005C52
oklch(42.6% 0.076 182.2)
-
Step 900
900
#004D44
oklch(37.7% 0.068 181.7)
-
Step 950
950
#002E28
oklch(27% 0.049 181.5)
#4DC1B0 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) | #B9B7AF | 0.114 |
| Deuteranopia (no green cones) | #A7AAB2 | 0.107 |
| Tritanopia (no blue cones) | #00C4BC | 0.026 |
| Achromatopsia (no color) | #AFAFAF | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4DC1B0
#4DC1B0
oklch(74.1% 0.107 182)
- #E38EA6
#E38EA6
oklch(74.1% 0.107 1.7)
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 #4DC1B0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.032
- Medium Aquamarine #66CDAA ΔE 0.044
- Greeny Blue #42B395 ΔE 0.050
- Dark Turquoise #00CED1 ΔE 0.050
- Medium Turquoise #48D1CC ΔE 0.051
- Light Sea Green #20B2AA ΔE 0.052
- Pale Teal #82CBB2 ΔE 0.056
- Green Blue #01C08D ΔE 0.060
Use #4DC1B0 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.