#3A525B
Closest named color: Dark Slate Gray (#2F4F4F). oklch(42.3% 0.033 223.1), rgb(58, 82, 91).
Aa
White text reads best on this color (8.27:1).
About this color
#3A525B is a dark, muted teal or cyan. In OKLCH its lightness is 42%, its chroma 0.033 and its hue 223°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.026 away. White text reads best on it, at 8.27:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.53:1 |
| White text | 8.27:1 |
Values
| HEX | #3A525B |
| RGB | rgb(58, 82, 91) |
| HSL | hsl(196, 22%, 29%) |
| OKLCH | oklch(42.3% 0.033 223.1) |
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 #3A525B | 8.27:1 | AAA | Lc -93.2 | Preferred for body text |
| Black text on #3A525B | 2.53:1 | Fails | Lc 15.4 | Dividers and decoration only |
| #3A525B text on white | 8.27:1 | AAA | Lc 88.6 | Fine for body text |
| #3A525B text on black | 2.53:1 | Fails | Lc -13.6 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EBEC
oklch(93.7% 0.006 211)
-
Step 200
200
#D2DBDE
oklch(88.5% 0.011 219.6)
-
Step 300
300
#B4C4CA
oklch(81% 0.019 222.2)
-
Step 400
400
#8DA5AF
oklch(70.7% 0.031 224.9)
-
Step 500
500
#708F9B
oklch(63.1% 0.039 223.5)
-
Step 600
600
#587986
oklch(55.6% 0.043 224.2)
-
Step 700
700
#486671
oklch(49.1% 0.039 222.7)
-
Step 800
800 (this color)
#3A525B
oklch(42.3% 0.033 223.1)
-
Step 900
900
#33454C
oklch(37.8% 0.026 223.7)
-
Step 950
950
#1E282C
oklch(26.9% 0.016 224.2)
#3A525B 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) | #4D515C | 0.027 |
| Deuteranopia (no green cones) | #484D5B | 0.024 |
| Tritanopia (no blue cones) | #2F5555 | 0.021 |
| Achromatopsia (no color) | #4E4E4E | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A525B
#3A525B
oklch(42.3% 0.033 223.1)
- #5E4840
#5E4840
oklch(42.3% 0.033 40.9)
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 #3A525B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.026
- Deep Teal #00555A ΔE 0.043
- Dark Grey Blue #29465B ΔE 0.047
- Charcoal #264653 ΔE 0.049
- YInMn Blue #415A77 ΔE 0.049
- Petrol #005F6A ΔE 0.050
- Dark Teal #014D4E ΔE 0.056
- Charcoal Grey #3C4142 ΔE 0.058
Use #3A525B 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.