#2F414D
Closest named color: Charcoal (#264653). oklch(36.5% 0.031 237.9), rgb(47, 65, 77).
Aa
White text reads best on this color (10.58:1).
About this color
#2F414D is a dark, muted blue. In OKLCH its lightness is 36%, its chroma 0.031 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.018 away. White text reads best on it, at 10.58:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | muted (0.031) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 1.98:1 |
| White text | 10.58:1 |
Values
| HEX | #2F414D |
| RGB | rgb(47, 65, 77) |
| HSL | hsl(204, 24%, 24%) |
| OKLCH | oklch(36.5% 0.031 237.9) |
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 #2F414D | 10.58:1 | AAA | Lc -98.5 | Preferred for body text |
| Black text on #2F414D | 1.98:1 | Fails | Lc 9.4 | Not readable |
| #2F414D text on white | 10.58:1 | AAA | Lc 94.5 | Preferred for body text |
| #2F414D text on black | 1.98:1 | Fails | Lc -8.1 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EBEE
oklch(93.7% 0.007 233.6)
-
Step 200
200
#D2DBE1
oklch(88.6% 0.013 236.6)
-
Step 300
300
#B3C3CE
oklch(80.8% 0.023 237.7)
-
Step 400
400
#8CA4B5
oklch(70.6% 0.037 238.9)
-
Step 500
500
#6F8EA3
oklch(63.1% 0.047 238.1)
-
Step 600
600
#56788E
oklch(55.5% 0.052 237.3)
-
Step 700
700
#476579
oklch(49.1% 0.048 238.2)
-
Step 800
800
#3A5262
oklch(42.6% 0.04 238.1)
-
Step 900
900 (this color)
#2F414D
oklch(36.5% 0.031 237.9)
-
Step 950
950
#1E282F
oklch(27% 0.019 238.9)
#2F414D 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) | #3C414E | 0.020 |
| Deuteranopia (no green cones) | #383D4D | 0.018 |
| Tritanopia (no blue cones) | #254445 | 0.024 |
| Achromatopsia (no color) | #3F3F3F | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F414D
#2F414D
oklch(36.5% 0.031 237.9)
- #4B3B2E
#4B3B2E
oklch(36.6% 0.031 60.7)
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 #2F414D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.018
- Dark Grey Blue #29465B ΔE 0.025
- Charcoal Grey #3C4142 ΔE 0.026
- Onyx #343A40 ΔE 0.027
- Dark Blue Grey #1F3B4D ΔE 0.030
- Dark Slate Gray #2F4F4F ΔE 0.046
- Midnight Green #073B4C ΔE 0.046
- Dark Teal #014D4E ΔE 0.049
Use #2F414D 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.