#33474A
Closest named color: Charcoal Grey (#3C4142). oklch(38.2% 0.026 207.6), rgb(51, 71, 74).
Aa
White text reads best on this color (9.80:1).
About this color
#33474A is a dark close to neutral grey. In OKLCH its lightness is 38%, its chroma 0.026. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.022 away. White text reads best on it, at 9.80:1.
| Hue family | Neutrals |
| Lightness | dark (38%) |
| Chroma | close to neutral grey (0.026) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.14:1 |
| White text | 9.80:1 |
Values
| HEX | #33474A |
| RGB | rgb(51, 71, 74) |
| HSL | hsl(188, 18%, 25%) |
| OKLCH | oklch(38.2% 0.026 207.6) |
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 #33474A | 9.80:1 | AAA | Lc -96.9 | Preferred for body text |
| Black text on #33474A | 2.14:1 | Fails | Lc 11.2 | Not readable |
| #33474A text on white | 9.80:1 | AAA | Lc 92.7 | Preferred for body text |
| #33474A text on black | 2.14:1 | Fails | Lc -9.7 | 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 900.
-
Step 50
50
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E6EBEC
oklch(93.7% 0.006 211)
-
Step 200
200
#D2DBDD
oklch(88.5% 0.01 212.5)
-
Step 300
300
#B3C4C7
oklch(80.8% 0.019 209.4)
-
Step 400
400
#8BA6AA
oklch(70.6% 0.031 207.4)
-
Step 500
500
#6E9196
oklch(63.2% 0.04 207.1)
-
Step 600
600
#567B80
oklch(55.7% 0.042 206.5)
-
Step 700
700
#46676C
oklch(49% 0.039 207.8)
-
Step 800
800
#395458
oklch(42.6% 0.033 207.5)
-
Step 900
900 (this color)
#33474A
oklch(38.2% 0.026 207.6)
-
Step 950
950
#1D292A
oklch(27% 0.017 202.6)
#33474A 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) | #44454A | 0.026 |
| Deuteranopia (no green cones) | #40424A | 0.024 |
| Tritanopia (no blue cones) | #2B4948 | 0.013 |
| Achromatopsia (no color) | #444444 | 0.026 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33474A
#33474A
oklch(38.2% 0.026 207.6)
- #503E3B
#503E3B
oklch(38.2% 0.026 29.2)
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 #33474A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.022
- Charcoal #264653 ΔE 0.022
- Dark Slate Gray #2F4F4F ΔE 0.025
- Dark Grey Blue #29465B ΔE 0.032
- Dark Teal #014D4E ΔE 0.040
- Onyx #343A40 ΔE 0.041
- Dark Blue Green #005249 ΔE 0.050
- Dark Blue Grey #1F3B4D ΔE 0.052
Use #33474A 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.