#2F416D
Closest named color: Twilight Blue (#0A437A). oklch(38.2% 0.079 266), rgb(47, 65, 109).
Aa
White text reads best on this color (10.01:1).
About this color
#2F416D is a dark, moderately saturated blue. In OKLCH its lightness is 38%, its chroma 0.079 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.036 away. White text reads best on it, at 10.01:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.09:1 |
| White text | 10.01:1 |
Values
| HEX | #2F416D |
| RGB | rgb(47, 65, 109) |
| HSL | hsl(223, 40%, 31%) |
| OKLCH | oklch(38.2% 0.079 266) |
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 #2F416D | 10.01:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #2F416D | 2.09:1 | Fails | Lc 10.8 | Not readable |
| #2F416D text on white | 10.01:1 | AAA | Lc 93.1 | Preferred for body text |
| #2F416D text on black | 2.09:1 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E4EAF6
oklch(93.6% 0.017 264.5)
-
Step 200
200
#CFD9F0
oklch(88.5% 0.033 266.9)
-
Step 300
300
#AFC0E8
oklch(80.8% 0.06 267)
-
Step 400
400
#859FDC
oklch(70.6% 0.095 266.3)
-
Step 500
500
#6786D3
oklch(63% 0.122 266.4)
-
Step 600
600
#4F6FC0
oklch(55.7% 0.131 266)
-
Step 700
700
#405CA6
oklch(49.1% 0.123 266.4)
-
Step 800
800
#354C86
oklch(42.8% 0.1 266)
-
Step 900
900 (this color)
#2F416D
oklch(38.2% 0.079 266)
-
Step 950
950
#1B253F
oklch(26.9% 0.051 267)
#2F416D 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) | #2F456F | 0.012 |
| Deuteranopia (no green cones) | #28406C | 0.010 |
| Tritanopia (no blue cones) | #0E4B51 | 0.072 |
| Achromatopsia (no color) | #424242 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F416D
#2F416D
oklch(38.2% 0.079 266)
- #553F00
#553F00
oklch(38.1% 0.078 86.2)
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 #2F416D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.036
- Dark Grey Blue #29465B ΔE 0.039
- Marine Blue #01386A ΔE 0.053
- Charcoal #264653 ΔE 0.054
- Light Navy #155084 ΔE 0.054
- Prussian Blue #1D3557 ΔE 0.057
- Cobalt #1E488F ΔE 0.058
- Dark Blue Grey #1F3B4D ΔE 0.062
Use #2F416D 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.