#2F426B
Closest named color: Dark Grey Blue (#29465B). oklch(38.4% 0.074 264.3), rgb(47, 66, 107).
Aa
White text reads best on this color (9.94:1).
About this color
#2F426B is a dark, moderately saturated blue. In OKLCH its lightness is 38%, its chroma 0.074 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.035 away. White text reads best on it, at 9.94:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.11:1 |
| White text | 9.94:1 |
Values
| HEX | #2F426B |
| RGB | rgb(47, 66, 107) |
| HSL | hsl(221, 39%, 30%) |
| OKLCH | oklch(38.4% 0.074 264.3) |
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 #2F426B | 9.94:1 | AAA | Lc -97.1 | Preferred for body text |
| Black text on #2F426B | 2.11:1 | Fails | Lc 11.0 | Not readable |
| #2F426B text on white | 9.94:1 | AAA | Lc 93.0 | Preferred for body text |
| #2F426B text on black | 2.11:1 | Fails | Lc -9.5 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200
#CFD9EE
oklch(88.4% 0.031 265.3)
-
Step 300
300
#AFC1E6
oklch(81% 0.056 264.7)
-
Step 400
400
#85A0D9
oklch(70.7% 0.089 264.7)
-
Step 500
500
#6688CF
oklch(63.2% 0.114 264)
-
Step 600
600
#4E70BC
oklch(55.6% 0.125 264.5)
-
Step 700
700
#3F5EA2
oklch(49.2% 0.115 264.1)
-
Step 800
800
#344D83
oklch(42.8% 0.095 264.1)
-
Step 900
900 (this color)
#2F426B
oklch(38.4% 0.074 264.3)
-
Step 950
950
#1B263E
oklch(27.1% 0.048 264.7)
#2F426B 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) | #32466D | 0.013 |
| Deuteranopia (no green cones) | #2B406A | 0.009 |
| Tritanopia (no blue cones) | #104B51 | 0.067 |
| Achromatopsia (no color) | #434343 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F426B
#2F426B
oklch(38.4% 0.074 264.3)
- #563F07
#563F07
oklch(38.3% 0.075 83.6)
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 #2F426B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.035
- Twilight Blue #0A437A ΔE 0.039
- Charcoal #264653 ΔE 0.049
- Light Navy #155084 ΔE 0.054
- Marine Blue #01386A ΔE 0.055
- Prussian Blue #1D3557 ΔE 0.057
- Dark Blue Grey #1F3B4D ΔE 0.059
- Cobalt #1E488F ΔE 0.061
Use #2F426B 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.