#3A425F
Closest named color: Dark Grey Blue (#29465B). oklch(38.5% 0.051 272), rgb(58, 66, 95).
Aa
White text reads best on this color (9.88:1).
About this color
#3A425F is a dark, muted blue. In OKLCH its lightness is 38%, its chroma 0.051 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.027 away. White text reads best on it, at 9.88:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.12:1 |
| White text | 9.88:1 |
Values
| HEX | #3A425F |
| RGB | rgb(58, 66, 95) |
| HSL | hsl(227, 24%, 30%) |
| OKLCH | oklch(38.5% 0.051 272) |
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 #3A425F | 9.88:1 | AAA | Lc -97.1 | Preferred for body text |
| Black text on #3A425F | 2.12:1 | Fails | Lc 11.0 | Not readable |
| #3A425F text on white | 9.88:1 | AAA | Lc 92.9 | Preferred for body text |
| #3A425F text on black | 2.12:1 | Fails | Lc -9.6 | 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 900.
-
Step 50
50
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7EAF1
oklch(93.7% 0.01 267.4)
-
Step 200
200
#D4D9E8
oklch(88.6% 0.021 271.2)
-
Step 300
300
#B8C0DA
oklch(81% 0.038 272)
-
Step 400
400
#939FC7
oklch(70.7% 0.06 271.8)
-
Step 500
500
#7987B9
oklch(63.2% 0.077 272)
-
Step 600
600
#6270A5
oklch(55.6% 0.084 272.1)
-
Step 700
700
#515E8E
oklch(49.2% 0.079 271.7)
-
Step 800
800
#424D73
oklch(42.8% 0.065 271.1)
-
Step 900
900 (this color)
#3A425F
oklch(38.5% 0.051 272)
-
Step 950
950
#212636
oklch(27.1% 0.031 270.8)
#3A425F 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) | #394560 | 0.009 |
| Deuteranopia (no green cones) | #36425E | 0.006 |
| Tritanopia (no blue cones) | #2F484C | 0.046 |
| Achromatopsia (no color) | #434343 | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A425F
#3A425F
oklch(38.5% 0.051 272)
- #4D4322
#4D4322
oklch(38.5% 0.051 93)
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 #3A425F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.027
- Charcoal #264653 ΔE 0.039
- Charcoal Grey #3C4142 ΔE 0.050
- Dark Blue Grey #1F3B4D ΔE 0.054
- Onyx #343A40 ΔE 0.056
- Dark Slate Gray #2F4F4F ΔE 0.058
- Prussian Blue #1D3557 ΔE 0.062
- Twilight Blue #0A437A ΔE 0.063
Use #3A425F 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.