#2D2F59
Closest named color: Prussian Blue (#1D3557). oklch(32.6% 0.074 279.4), rgb(45, 47, 89).
Aa
White text reads best on this color (12.63:1).
About this color
#2D2F59 is a dark, moderately saturated blue. In OKLCH its lightness is 33%, its chroma 0.074 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.028 away. White text reads best on it, at 12.63:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.66:1 |
| White text | 12.63:1 |
Values
| HEX | #2D2F59 |
| RGB | rgb(45, 47, 89) |
| HSL | hsl(237, 33%, 26%) |
| OKLCH | oklch(32.6% 0.074 279.4) |
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 #2D2F59 | 12.63:1 | AAA | Lc -101.9 | Preferred for body text |
| Black text on #2D2F59 | 1.66:1 | Fails | Lc 0.0 | Not readable |
| #2D2F59 text on white | 12.63:1 | AAA | Lc 98.5 | Preferred for body text |
| #2D2F59 text on black | 1.66:1 | Fails | Lc 0.0 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F5
oklch(93.6% 0.016 278.5)
-
Step 200
200
#D4D7EE
oklch(88.4% 0.032 279.8)
-
Step 300
300
#B9BDE5
oklch(80.9% 0.056 280.6)
-
Step 400
400
#959BD7
oklch(70.7% 0.088 279.5)
-
Step 500
500
#7C81CC
oklch(63.1% 0.112 279.7)
-
Step 600
600
#6569B9
oklch(55.5% 0.123 279.4)
-
Step 700
700
#5457A0
oklch(49% 0.115 279.5)
-
Step 800
800
#454881
oklch(42.7% 0.094 279.4)
-
Step 900
900 (this color)
#2D2F59
oklch(32.6% 0.074 279.4)
-
Step 950
950
#22243D
oklch(27.1% 0.046 279.3)
#2D2F59 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) | #1F355B | 0.025 |
| Deuteranopia (no green cones) | #1C3158 | 0.024 |
| Tritanopia (no blue cones) | #1E383F | 0.065 |
| Achromatopsia (no color) | #333333 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D2F59
#2D2F59
oklch(32.6% 0.074 279.4)
- #3D3400
#3D3400
oklch(32.5% 0.067 98.6)
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 #2D2F59, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.028
- Space Cadet #2B2D42 ΔE 0.041
- Marine #042E60 ΔE 0.047
- Gunmetal #293241 ΔE 0.048
- Dark Blue Grey #1F3B4D ΔE 0.051
- Marine Blue #01386A ΔE 0.051
- Midnight Green #073B4C ΔE 0.061
- Onyx #343A40 ΔE 0.066
Use #2D2F59 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.