#2A2E59
Closest named color: Prussian Blue (#1D3557). oklch(32.1% 0.076 277.2), rgb(42, 46, 89).
Aa
White text reads best on this color (12.85:1).
About this color
#2A2E59 is a dark, moderately saturated blue. In OKLCH its lightness is 32%, its chroma 0.076 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.027 away. White text reads best on it, at 12.85:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.63:1 |
| White text | 12.85:1 |
Values
| HEX | #2A2E59 |
| RGB | rgb(42, 46, 89) |
| HSL | hsl(235, 36%, 26%) |
| OKLCH | oklch(32.1% 0.076 277.2) |
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 #2A2E59 | 12.85:1 | AAA | Lc -102.2 | Preferred for body text |
| Black text on #2A2E59 | 1.63:1 | Fails | Lc 0.0 | Not readable |
| #2A2E59 text on white | 12.85:1 | AAA | Lc 98.9 | Preferred for body text |
| #2A2E59 text on black | 1.63:1 | 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 950.
-
Step 50
50
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E5E9FC
oklch(93.7% 0.026 276.4)
-
Step 200
200
#D0D7FB
oklch(88.5% 0.05 276.6)
-
Step 300
300
#B2BCFB
oklch(81% 0.09 277.2)
-
Step 400
400
#8B96F9
oklch(70.7% 0.144 277.2)
-
Step 500
500
#7178F6
oklch(63% 0.185 277.3)
-
Step 600
600
#5C5DE4
oklch(55.5% 0.2 277.4)
-
Step 700
700
#4C4CC6
oklch(49.1% 0.185 277.1)
-
Step 800
800
#3E3FA0
oklch(42.6% 0.153 277.2)
-
Step 900
900
#34377F
oklch(37.7% 0.119 277.2)
-
Step 950
950 (this color)
#2A2E59
oklch(32.1% 0.076 277.2)
#2A2E59 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) | #1C345B | 0.024 |
| Deuteranopia (no green cones) | #183058 | 0.024 |
| Tritanopia (no blue cones) | #18373F | 0.066 |
| Achromatopsia (no color) | #323232 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A2E59
#2A2E59
oklch(32.1% 0.076 277.2)
- #3D3300
#3D3300
oklch(32.2% 0.066 97.1)
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 #2A2E59, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.027
- Space Cadet #2B2D42 ΔE 0.041
- Marine #042E60 ΔE 0.042
- Gunmetal #293241 ΔE 0.049
- Marine Blue #01386A ΔE 0.049
- Dark Blue Grey #1F3B4D ΔE 0.052
- Midnight Green #073B4C ΔE 0.061
- Oxford Blue #1B263B ΔE 0.063
Use #2A2E59 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.