#3E4552
Closest named color: Charcoal Grey (#3C4142). oklch(38.9% 0.024 262.8), rgb(62, 69, 82).
Aa
White text reads best on this color (9.64:1).
About this color
#3E4552 is a dark close to neutral grey. In OKLCH its lightness is 39%, its chroma 0.024. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.027 away. White text reads best on it, at 9.64:1.
| Hue family | Neutrals |
| Lightness | dark (39%) |
| Chroma | close to neutral grey (0.024) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.17:1 |
| White text | 9.64:1 |
Values
| HEX | #3E4552 |
| RGB | rgb(62, 69, 82) |
| HSL | hsl(219, 14%, 28%) |
| OKLCH | oklch(38.9% 0.024 262.8) |
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 #3E4552 | 9.64:1 | AAA | Lc -96.6 | Preferred for body text |
| Black text on #3E4552 | 2.17:1 | Fails | Lc 11.6 | Not readable |
| #3E4552 text on white | 9.64:1 | AAA | Lc 92.4 | Preferred for body text |
| #3E4552 text on black | 2.17:1 | Fails | Lc -10.1 | 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 900.
-
Step 50
50
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E8EAED
oklch(93.6% 0.005 258.3)
-
Step 200
200
#D6D9E0
oklch(88.5% 0.01 267.4)
-
Step 300
300
#BAC1CD
oklch(80.9% 0.019 261.3)
-
Step 400
400
#97A1B3
oklch(70.7% 0.029 262.3)
-
Step 500
500
#7E8AA0
oklch(63.1% 0.036 262.6)
-
Step 600
600
#67748B
oklch(55.7% 0.039 261.8)
-
Step 700
700
#566176
oklch(49.1% 0.036 263.3)
-
Step 800
800
#464F60
oklch(42.6% 0.031 263.1)
-
Step 900
900 (this color)
#3E4552
oklch(38.9% 0.024 262.8)
-
Step 950
950
#22272E
oklch(27.1% 0.015 256.8)
#3E4552 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) | #414653 | 0.006 |
| Deuteranopia (no green cones) | #3F4452 | 0.003 |
| Tritanopia (no blue cones) | #394849 | 0.022 |
| Achromatopsia (no color) | #454545 | 0.024 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E4552
#3E4552
oklch(38.9% 0.024 262.8)
- #4B4436
#4B4436
oklch(38.9% 0.025 84.5)
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 #3E4552, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.027
- Dark Grey Blue #29465B ΔE 0.030
- Charcoal #264653 ΔE 0.032
- Dark Slate Gray #2F4F4F ΔE 0.039
- Onyx #343A40 ΔE 0.046
- Dark Blue Grey #1F3B4D ΔE 0.057
- Dark Teal #014D4E ΔE 0.060
- Deep Teal #00555A ΔE 0.065
Use #3E4552 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.