#2F5281
Closest named color: Dusk Blue (#26538D). oklch(43.5% 0.088 256.3), rgb(47, 82, 129).
Aa
White text reads best on this color (7.94:1).
About this color
#2F5281 is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.088 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.021 away. White text reads best on it, at 7.94:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.64:1 |
| White text | 7.94:1 |
Values
| HEX | #2F5281 |
| RGB | rgb(47, 82, 129) |
| HSL | hsl(214, 47%, 35%) |
| OKLCH | oklch(43.5% 0.088 256.3) |
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 #2F5281 | 7.94:1 | AAA | Lc -92.1 | Preferred for body text |
| Black text on #2F5281 | 2.64:1 | Fails | Lc 16.6 | Dividers and decoration only |
| #2F5281 text on white | 7.94:1 | AAA | Lc 87.4 | Fine for body text |
| #2F5281 text on black | 2.64:1 | Fails | Lc -14.8 | 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 800.
-
Step 50
50
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CDDAEC
oklch(88.4% 0.029 256.5)
-
Step 300
300
#ABC3E2
oklch(80.9% 0.051 254.9)
-
Step 400
400
#7FA3D4
oklch(70.7% 0.082 256.2)
-
Step 500
500
#5E8BC8
oklch(63% 0.105 256.3)
-
Step 600
600
#4474B5
oklch(55.5% 0.115 256.4)
-
Step 700
700
#35619C
oklch(49% 0.107 256.3)
-
Step 800
800 (this color)
#2F5281
oklch(43.5% 0.088 256.3)
-
Step 900
900
#284266
oklch(37.6% 0.07 256.8)
-
Step 950
950
#18273B
oklch(27% 0.043 255.9)
#2F5281 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) | #3E5583 | 0.021 |
| Deuteranopia (no green cones) | #334D80 | 0.015 |
| Tritanopia (no blue cones) | #005D63 | 0.075 |
| Achromatopsia (no color) | #515151 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F5281
#2F5281
oklch(43.5% 0.088 256.3)
- #6D4907
#6D4907
oklch(43.5% 0.088 75.2)
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 #2F5281, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.021
- Light Navy #155084 ΔE 0.024
- Light Navy Blue #2E5A88 ΔE 0.024
- Deep Sea Blue #015482 ΔE 0.028
- Denim Blue #3B5B92 ΔE 0.040
- YInMn Blue #415A77 ΔE 0.040
- Dusk #4E5481 ΔE 0.041
- Twilight #4E518B ΔE 0.045
Use #2F5281 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.