#4E6371
Closest named color: Slate (#516572). oklch(48.8% 0.034 237.6), rgb(78, 99, 113).
Aa
White text reads best on this color (6.27:1).
About this color
#4E6371 is a medium-dark, muted blue. In OKLCH its lightness is 49%, its chroma 0.034 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.008 away. White text reads best on it, at 6.27:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | muted (0.034) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.34:1 |
| White text | 6.27:1 |
Values
| HEX | #4E6371 |
| RGB | rgb(78, 99, 113) |
| HSL | hsl(204, 18%, 37%) |
| OKLCH | oklch(48.8% 0.034 237.6) |
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 #4E6371 | 6.27:1 | AA | Lc -86.4 | Fine for body text |
| Black text on #4E6371 | 3.34:1 | AA large text | Lc 22.8 | Dividers and decoration only |
| #4E6371 text on white | 6.27:1 | AA | Lc 81.2 | Fine for body text |
| #4E6371 text on black | 3.34:1 | AA large text | Lc -20.6 | 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 700.
-
Step 50
50
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E7EAED
oklch(93.6% 0.005 247.9)
-
Step 200
200
#D4DADE
oklch(88.5% 0.009 236.6)
-
Step 300
300
#B7C2CA
oklch(80.8% 0.017 239.2)
-
Step 400
400
#92A3AF
oklch(70.6% 0.026 238.6)
-
Step 500
500
#778D9C
oklch(63.1% 0.034 237.9)
-
Step 600
600
#607786
oklch(55.6% 0.036 236.9)
-
Step 700
700 (this color)
#4E6371
oklch(48.8% 0.034 237.6)
-
Step 800
800
#41525D
oklch(42.8% 0.028 236.7)
-
Step 900
900
#37444C
oklch(37.8% 0.022 235.2)
-
Step 950
950
#20282C
oklch(27.1% 0.014 229.5)
#4E6371 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) | #5D6272 | 0.021 |
| Deuteranopia (no green cones) | #585E71 | 0.020 |
| Tritanopia (no blue cones) | #436767 | 0.028 |
| Achromatopsia (no color) | #606060 | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4E6371
#4E6371
oklch(48.8% 0.034 237.6)
- #6F5B4D
#6F5B4D
oklch(48.7% 0.034 56.8)
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 #4E6371, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.008
- YInMn Blue #415A77 ΔE 0.038
- Dusty Grape #545775 ΔE 0.039
- Dim Gray #696969 ΔE 0.047
- Denim #3B638C ΔE 0.048
- Metallic Blue #4F738E ΔE 0.057
- Dusk #4E5481 ΔE 0.059
- Dark Aqua #05696B ΔE 0.060
Use #4E6371 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.