#2F445C
Closest named color: Dark Grey Blue (#29465B). oklch(38% 0.049 252.4), rgb(47, 68, 92).
Aa
White text reads best on this color (9.98:1).
About this color
#2F445C is a dark, muted blue. In OKLCH its lightness is 38%, its chroma 0.049 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.010 away. White text reads best on it, at 9.98:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.10:1 |
| White text | 9.98:1 |
Values
| HEX | #2F445C |
| RGB | rgb(47, 68, 92) |
| HSL | hsl(212, 32%, 27%) |
| OKLCH | oklch(38% 0.049 252.4) |
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 #2F445C | 9.98:1 | AAA | Lc -97.3 | Preferred for body text |
| Black text on #2F445C | 2.10:1 | Fails | Lc 10.8 | Not readable |
| #2F445C text on white | 9.98:1 | AAA | Lc 93.1 | Preferred for body text |
| #2F445C text on black | 2.10:1 | Fails | Lc -9.4 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EAF1
oklch(93.5% 0.011 256.7)
-
Step 200
200
#D0DAE7
oklch(88.5% 0.021 254.9)
-
Step 300
300
#B0C3D8
oklch(80.9% 0.036 250.9)
-
Step 400
400
#87A3C5
oklch(70.6% 0.059 253.5)
-
Step 500
500
#688CB6
oklch(63% 0.075 252.8)
-
Step 600
600
#4F76A2
oklch(55.6% 0.082 252.3)
-
Step 700
700
#40638B
oklch(49.1% 0.076 252.6)
-
Step 800
800
#355171
oklch(42.7% 0.063 252.5)
-
Step 900
900 (this color)
#2F445C
oklch(38% 0.049 252.4)
-
Step 950
950
#1B2735
oklch(26.8% 0.031 252.8)
#2F445C 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) | #3B455D | 0.018 |
| Deuteranopia (no green cones) | #35405C | 0.014 |
| Tritanopia (no blue cones) | #1D494C | 0.042 |
| Achromatopsia (no color) | #424242 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F445C
#2F445C
oklch(38% 0.049 252.4)
- #533E24
#533E24
oklch(38% 0.049 71.4)
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 #2F445C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.010
- Charcoal #264653 ΔE 0.022
- Dark Blue Grey #1F3B4D ΔE 0.043
- Charcoal Grey #3C4142 ΔE 0.045
- Dark Slate Gray #2F4F4F ΔE 0.048
- Onyx #343A40 ΔE 0.050
- Dark Teal #014D4E ΔE 0.055
- Prussian Blue #1D3557 ΔE 0.056
Use #2F445C 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.