#4D8181
Closest named color: Grey Blue (#647D8E). oklch(56.7% 0.056 195.7), rgb(77, 129, 129).
Aa
Black text reads best on this color (4.77:1).
About this color
#4D8181 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 57%, its chroma 0.056 and its hue 196°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Blue (#647D8E), ΔE 0.039 away. Black text reads best on it, at 4.77:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (57%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Grey Blue (#647D8E) |
| Black text | 4.77:1 |
| White text | 4.40:1 |
Values
| HEX | #4D8181 |
| RGB | rgb(77, 129, 129) |
| HSL | hsl(180, 25%, 40%) |
| OKLCH | oklch(56.7% 0.056 195.7) |
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 #4D8181 | 4.40:1 | AA large text | Lc -75.9 | Fine for body text |
| Black text on #4D8181 | 4.77:1 | AA | Lc 33.7 | Non-text elements, placeholder text |
| #4D8181 text on white | 4.40:1 | AA large text | Lc 70.4 | Content text, not long reading |
| #4D8181 text on black | 4.77:1 | AA | Lc -31.2 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E5EBEB
oklch(93.6% 0.006 197)
-
Step 200
200
#CFDCDC
oklch(88.5% 0.014 196.9)
-
Step 300
300
#AFC6C6
oklch(80.9% 0.025 196.7)
-
Step 400
400
#84A9A9
oklch(70.8% 0.04 196.3)
-
Step 500
500
#649493
oklch(63.2% 0.052 194.3)
-
Step 600
600 (this color)
#4D8181
oklch(56.7% 0.056 195.7)
-
Step 700
700
#3B6A6A
oklch(49.1% 0.051 195.6)
-
Step 800
800
#315656
oklch(42.6% 0.042 195.7)
-
Step 900
900
#2C4747
oklch(37.6% 0.033 195.8)
-
Step 950
950
#1A2A2A
oklch(27.1% 0.021 196)
#4D8181 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) | #7B7C81 | 0.059 |
| Deuteranopia (no green cones) | #717581 | 0.054 |
| Tritanopia (no blue cones) | #368481 | 0.021 |
| Achromatopsia (no color) | #787878 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D8181
#4D8181
oklch(56.7% 0.056 195.7)
- #95696B
#95696B
oklch(56.7% 0.057 16)
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 #4D8181, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Blue #647D8E ΔE 0.039
- Battleship Grey #6B7C85 ΔE 0.039
- Dark Cyan #008B8B ΔE 0.044
- Teal #008080 ΔE 0.044
- Dusty Teal #4C9085 ΔE 0.044
- Steel Grey #6F828A ΔE 0.045
- Battleship Gray #6C757D ΔE 0.048
- Slate Gray #708090 ΔE 0.051
Use #4D8181 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.