#4C8389
Closest named color: Grey Blue (#647D8E). oklch(57.4% 0.059 204.6), rgb(76, 131, 137).
Aa
Black text reads best on this color (4.91:1).
About this color
#4C8389 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 57%, its chroma 0.059 and its hue 205°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Blue (#647D8E), ΔE 0.034 away. Black text reads best on it, at 4.91:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (57%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Grey Blue (#647D8E) |
| Black text | 4.91:1 |
| White text | 4.27:1 |
Values
| HEX | #4C8389 |
| RGB | rgb(76, 131, 137) |
| HSL | hsl(186, 29%, 42%) |
| OKLCH | oklch(57.4% 0.059 204.6) |
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 #4C8389 | 4.27:1 | AA large text | Lc -74.9 | Content text, not long reading |
| Black text on #4C8389 | 4.91:1 | AA | Lc 34.6 | Non-text elements, placeholder text |
| #4C8389 text on white | 4.27:1 | AA large text | Lc 69.4 | Content text, not long reading |
| #4C8389 text on black | 4.91:1 | AA | Lc -32.2 | 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
#E4EBEC
oklch(93.5% 0.008 207.1)
-
Step 200
200
#CFDCDE
oklch(88.5% 0.014 207.9)
-
Step 300
300
#AEC6C9
oklch(80.9% 0.026 205.8)
-
Step 400
400
#82A9AD
oklch(70.8% 0.043 204)
-
Step 500
500
#619399
oklch(63% 0.054 205.4)
-
Step 600
600 (this color)
#4C8389
oklch(57.4% 0.059 204.6)
-
Step 700
700
#386A6F
oklch(49.1% 0.054 204)
-
Step 800
800
#2F565B
oklch(42.6% 0.045 206.2)
-
Step 900
900
#2A474A
oklch(37.6% 0.035 204.1)
-
Step 950
950
#192A2C
oklch(27.1% 0.023 205.2)
#4C8389 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) | #7B7F89 | 0.058 |
| Deuteranopia (no green cones) | #717789 | 0.054 |
| Tritanopia (no blue cones) | #2F8785 | 0.027 |
| Achromatopsia (no color) | #7A7A7A | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C8389
#4C8389
oklch(57.4% 0.059 204.6)
- #996B67
#996B67
oklch(57.4% 0.06 24.7)
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 #4C8389, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Blue #647D8E ΔE 0.034
- Battleship Grey #6B7C85 ΔE 0.039
- Steel Grey #6F828A ΔE 0.041
- Dark Cyan #008B8B ΔE 0.042
- Dusty Teal #4C9085 ΔE 0.042
- Stormy Blue #507B9C ΔE 0.044
- Teal Blue #01889F ΔE 0.045
- Cerulean #457B9D ΔE 0.046
Use #4C8389 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.