#4C8187
Closest named color: Grey Blue (#647D8E). oklch(56.9% 0.057 205), rgb(76, 129, 135).
Aa
Black text reads best on this color (4.79:1).
About this color
#4C8187 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 57%, its chroma 0.057 and its hue 205°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Blue (#647D8E), ΔE 0.033 away. Black text reads best on it, at 4.79:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (57%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Grey Blue (#647D8E) |
| Black text | 4.79:1 |
| White text | 4.37:1 |
Values
| HEX | #4C8187 |
| RGB | rgb(76, 129, 135) |
| HSL | hsl(186, 28%, 41%) |
| OKLCH | oklch(56.9% 0.057 205) |
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 #4C8187 | 4.37:1 | AA large text | Lc -75.7 | Fine for body text |
| Black text on #4C8187 | 4.79:1 | AA | Lc 33.8 | Non-text elements, placeholder text |
| #4C8187 text on white | 4.37:1 | AA large text | Lc 70.2 | Content text, not long reading |
| #4C8187 text on black | 4.79:1 | AA | Lc -31.4 | 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
#CFDCDD
oklch(88.5% 0.014 202.4)
-
Step 300
300
#AEC6C8
oklch(80.9% 0.026 202.8)
-
Step 400
400
#83A8AD
oklch(70.6% 0.041 206.5)
-
Step 500
500
#639399
oklch(63.1% 0.052 205.8)
-
Step 600
600 (this color)
#4C8187
oklch(56.9% 0.057 205)
-
Step 700
700
#396A6F
oklch(49.2% 0.054 204.1)
-
Step 800
800
#30565A
oklch(42.7% 0.044 204.3)
-
Step 900
900
#2B474A
oklch(37.7% 0.034 204.4)
-
Step 950
950
#1A2A2B
oklch(27.1% 0.021 200.9)
#4C8187 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) | #797D87 | 0.056 |
| Deuteranopia (no green cones) | #6F7587 | 0.053 |
| Tritanopia (no blue cones) | #318583 | 0.027 |
| Achromatopsia (no color) | #797979 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C8187
#4C8187
oklch(56.9% 0.057 205)
- #966A66
#966A66
oklch(56.8% 0.057 24.8)
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 #4C8187, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Blue #647D8E ΔE 0.033
- Battleship Grey #6B7C85 ΔE 0.038
- Stormy Blue #507B9C ΔE 0.043
- Steel Grey #6F828A ΔE 0.043
- Dark Cyan #008B8B ΔE 0.044
- Cerulean #457B9D ΔE 0.044
- Teal #008080 ΔE 0.046
- Dusty Teal #4C9085 ΔE 0.047
Use #4C8187 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.