#2B2C57
Closest named color: Prussian Blue (#1D3557). oklch(31.6% 0.076 280.1), rgb(43, 44, 87).
Aa
White text reads best on this color (13.11:1).
About this color
#2B2C57 is a dark, moderately saturated purple. In OKLCH its lightness is 32%, its chroma 0.076 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.032 away. White text reads best on it, at 13.11:1.
| Hue family | Purples |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.60:1 |
| White text | 13.11:1 |
Values
| HEX | #2B2C57 |
| RGB | rgb(43, 44, 87) |
| HSL | hsl(239, 34%, 25%) |
| OKLCH | oklch(31.6% 0.076 280.1) |
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 #2B2C57 | 13.11:1 | AAA | Lc -102.6 | Preferred for body text |
| Black text on #2B2C57 | 1.60:1 | Fails | Lc 0.0 | Not readable |
| #2B2C57 text on white | 13.11:1 | AAA | Lc 99.3 | Preferred for body text |
| #2B2C57 text on black | 1.60:1 | 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
#F4F5FE
oklch(97.2% 0.012 281.1)
-
Step 100
100
#E6E8FB
oklch(93.5% 0.026 281.1)
-
Step 200
200
#D2D6FA
oklch(88.4% 0.05 280.3)
-
Step 300
300
#B5BBFA
oklch(81% 0.089 280)
-
Step 400
400
#9095F7
oklch(70.7% 0.142 279.9)
-
Step 500
500
#7777F4
oklch(63.2% 0.182 279.8)
-
Step 600
600
#635BE3
oklch(55.6% 0.2 280.3)
-
Step 700
700
#524AC5
oklch(49.1% 0.185 280)
-
Step 800
800
#433E9F
oklch(42.8% 0.152 280.1)
-
Step 900
900
#38367E
oklch(37.7% 0.118 280.3)
-
Step 950
950 (this color)
#2B2C57
oklch(31.6% 0.076 280.1)
#2B2C57 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) | #1B3259 | 0.026 |
| Deuteranopia (no green cones) | #172F56 | 0.028 |
| Tritanopia (no blue cones) | #1C353D | 0.065 |
| Achromatopsia (no color) | #303030 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B2C57
#2B2C57
oklch(31.6% 0.076 280.1)
- #3A3200
#3A3200
oklch(31.6% 0.066 99.5)
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 #2B2C57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.032
- Space Cadet #2B2D42 ΔE 0.039
- Marine #042E60 ΔE 0.044
- Gunmetal #293241 ΔE 0.049
- Marine Blue #01386A ΔE 0.055
- Dark Blue Grey #1F3B4D ΔE 0.056
- Oxford Blue #1B263B ΔE 0.060
- Midnight Green #073B4C ΔE 0.065
Use #2B2C57 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.