#2F4450
Closest named color: Charcoal (#264653). oklch(37.4% 0.033 233.9), rgb(47, 68, 80).
Aa
White text reads best on this color (10.17:1).
About this color
#2F4450 is a dark, muted blue. In OKLCH its lightness is 37%, its chroma 0.033 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.012 away. White text reads best on it, at 10.17:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 2.06:1 |
| White text | 10.17:1 |
Values
| HEX | #2F4450 |
| RGB | rgb(47, 68, 80) |
| HSL | hsl(202, 26%, 25%) |
| OKLCH | oklch(37.4% 0.033 233.9) |
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 #2F4450 | 10.17:1 | AAA | Lc -97.7 | Preferred for body text |
| Black text on #2F4450 | 2.06:1 | Fails | Lc 10.3 | Not readable |
| #2F4450 text on white | 10.17:1 | AAA | Lc 93.6 | Preferred for body text |
| #2F4450 text on black | 2.06:1 | Fails | Lc -8.9 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBEE
oklch(93.6% 0.008 228.9)
-
Step 200
200
#D1DBE1
oklch(88.6% 0.014 233.8)
-
Step 300
300
#B2C4CF
oklch(81% 0.025 234.5)
-
Step 400
400
#89A5B6
oklch(70.6% 0.04 234.8)
-
Step 500
500
#6B8FA4
oklch(63.1% 0.051 234.2)
-
Step 600
600
#52798F
oklch(55.6% 0.056 233.8)
-
Step 700
700
#42667A
oklch(49.1% 0.052 233.6)
-
Step 800
800
#375363
oklch(42.7% 0.043 234.2)
-
Step 900
900 (this color)
#2F4450
oklch(37.4% 0.033 233.9)
-
Step 950
950
#1C282F
oklch(26.9% 0.021 234.2)
#2F4450 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) | #3E4351 | 0.022 |
| Deuteranopia (no green cones) | #3A4050 | 0.019 |
| Tritanopia (no blue cones) | #234748 | 0.025 |
| Achromatopsia (no color) | #414141 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F4450
#2F4450
oklch(37.4% 0.033 233.9)
- #4F3C30
#4F3C30
oklch(37.3% 0.033 53.7)
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 #2F4450, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.012
- Dark Grey Blue #29465B ΔE 0.019
- Charcoal Grey #3C4142 ΔE 0.027
- Onyx #343A40 ΔE 0.036
- Dark Slate Gray #2F4F4F ΔE 0.037
- Dark Blue Grey #1F3B4D ΔE 0.038
- Dark Teal #014D4E ΔE 0.044
- Midnight Green #073B4C ΔE 0.052
Use #2F4450 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.