#4E7377
Closest named color: Metallic Blue (#4F738E). oklch(52.9% 0.042 204.5), rgb(78, 115, 119).
Aa
White text reads best on this color (5.19:1).
About this color
#4E7377 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 53%, its chroma 0.042 and its hue 204°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.037 away. White text reads best on it, at 5.19:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.04:1 |
| White text | 5.19:1 |
Values
| HEX | #4E7377 |
| RGB | rgb(78, 115, 119) |
| HSL | hsl(186, 21%, 39%) |
| OKLCH | oklch(52.9% 0.042 204.5) |
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 #4E7377 | 5.19:1 | AA | Lc -81.1 | Fine for body text |
| Black text on #4E7377 | 4.04:1 | AA large text | Lc 28.4 | Dividers and decoration only |
| #4E7377 text on white | 5.19:1 | AA | Lc 75.7 | Fine for body text |
| #4E7377 text on black | 4.04:1 | AA large text | Lc -26.0 | Dividers and decoration only |
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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E6EBEB
oklch(93.6% 0.005 197.1)
-
Step 200
200
#D2DBDC
oklch(88.5% 0.01 204.9)
-
Step 300
300
#B3C4C6
oklch(80.8% 0.019 205.3)
-
Step 400
400
#8BA6A9
oklch(70.6% 0.03 204.7)
-
Step 500
500
#6E9194
oklch(63.1% 0.039 202.8)
-
Step 600
600 (this color)
#4E7377
oklch(52.9% 0.042 204.5)
-
Step 700
700
#46676B
oklch(49% 0.039 205.5)
-
Step 800
800
#3A5457
oklch(42.6% 0.032 205)
-
Step 900
900
#324648
oklch(37.8% 0.025 203.8)
-
Step 950
950
#1D292A
oklch(27% 0.017 202.6)
#4E7377 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) | #6D7077 | 0.041 |
| Deuteranopia (no green cones) | #666A77 | 0.040 |
| Tritanopia (no blue cones) | #3F7674 | 0.019 |
| Achromatopsia (no color) | #6D6D6D | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4E7377
#4E7377
oklch(52.9% 0.042 204.5)
- #83625F
#83625F
oklch(52.9% 0.043 24.6)
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 #4E7377, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.037
- Slate #516572 ΔE 0.041
- Battleship Gray #6C757D ΔE 0.042
- Dim Gray #696969 ΔE 0.043
- Deep Aqua #08787F ΔE 0.046
- Bluegreen #017A79 ΔE 0.049
- Deep Turquoise #017374 ΔE 0.051
- Battleship Grey #6B7C85 ΔE 0.052
Use #4E7377 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.