#4B4757
Closest named color: Charcoal Grey (#3C4142). oklch(40.8% 0.027 296.6), rgb(75, 71, 87).
Aa
White text reads best on this color (8.98:1).
About this color
#4B4757 is a dark close to neutral grey. In OKLCH its lightness is 41%, its chroma 0.027. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.046 away. White text reads best on it, at 8.98:1.
| Hue family | Neutrals |
| Lightness | dark (41%) |
| Chroma | close to neutral grey (0.027) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.33:1 |
| White text | 8.98:1 |
Values
| HEX | #4B4757 |
| RGB | rgb(75, 71, 87) |
| HSL | hsl(255, 10%, 31%) |
| OKLCH | oklch(40.8% 0.027 296.6) |
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 #4B4757 | 8.98:1 | AAA | Lc -95.0 | Preferred for body text |
| Black text on #4B4757 | 2.33:1 | Fails | Lc 13.3 | Not readable |
| #4B4757 text on white | 8.98:1 | AAA | Lc 90.6 | Preferred for body text |
| #4B4757 text on black | 2.33:1 | Fails | Lc -11.7 | Not readable |
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 800.
-
Step 50
50
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#EAE9EC
oklch(93.6% 0.004 301.4)
-
Step 200
200
#D9D8DE
oklch(88.5% 0.008 293.9)
-
Step 300
300
#C1BFCA
oklch(81% 0.015 294.4)
-
Step 400
400
#A29EAF
oklch(70.8% 0.025 296.5)
-
Step 500
500
#8B869B
oklch(63.1% 0.032 296.4)
-
Step 600
600
#756F86
oklch(55.5% 0.036 297.2)
-
Step 700
700
#625D71
oklch(49% 0.032 296.6)
-
Step 800
800 (this color)
#4B4757
oklch(40.8% 0.027 296.6)
-
Step 900
900
#423F4C
oklch(37.6% 0.022 295.9)
-
Step 950
950
#27252C
oklch(27% 0.013 298.6)
#4B4757 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) | #444958 | 0.012 |
| Deuteranopia (no green cones) | #444957 | 0.012 |
| Tritanopia (no blue cones) | #49494C | 0.022 |
| Achromatopsia (no color) | #494949 | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B4757
#4B4757
oklch(40.8% 0.027 296.6)
- #494C3B
#494C3B
oklch(40.9% 0.028 115.8)
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 #4B4757, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.046
- Dark Grey Blue #29465B ΔE 0.049
- Dark Slate Gray #2F4F4F ΔE 0.051
- Charcoal #264653 ΔE 0.054
- Dusty Grape #545775 ΔE 0.063
- Purple Brown #673A3F ΔE 0.063
- Onyx #343A40 ΔE 0.066
- YInMn Blue #415A77 ΔE 0.066
Use #4B4757 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.