#291F4A
Closest named color: Oxford Blue (#1B263B). oklch(27.6% 0.077 291.2), rgb(41, 31, 74).
Aa
White text reads best on this color (15.11:1).
About this color
#291F4A is a dark, moderately saturated purple. In OKLCH its lightness is 28%, its chroma 0.077 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.045 away. White text reads best on it, at 15.11:1.
| Hue family | Purples |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.077) |
| Temperature | in between |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.38:1 |
| White text | 15.11:1 |
Values
| HEX | #291F4A |
| RGB | rgb(41, 31, 74) |
| HSL | hsl(254, 41%, 21%) |
| OKLCH | oklch(27.6% 0.077 291.2) |
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 #291F4A | 15.11:1 | AAA | Lc -104.7 | Preferred for body text |
| Black text on #291F4A | 1.38:1 | Fails | Lc 0.0 | Not readable |
| #291F4A text on white | 15.11:1 | AAA | Lc 101.9 | Preferred for body text |
| #291F4A text on black | 1.38:1 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E9E7FB
oklch(93.5% 0.027 290.5)
-
Step 200
200
#D9D4F9
oklch(88.6% 0.051 291.5)
-
Step 300
300
#C1B7F7
oklch(81% 0.09 291.4)
-
Step 400
400
#A28EF3
oklch(70.6% 0.145 291.3)
-
Step 500
500
#8D6EEF
oklch(63% 0.186 291.2)
-
Step 600
600
#7952DD
oklch(55.6% 0.202 291.3)
-
Step 700
700
#6641C0
oklch(49% 0.188 291.3)
-
Step 800
800
#53379B
oklch(42.7% 0.155 291.3)
-
Step 900
900
#44317C
oklch(37.7% 0.122 291.1)
-
Step 950
950 (this color)
#291F4A
oklch(27.6% 0.077 291.2)
#291F4A 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) | #0C274B | 0.045 |
| Deuteranopia (no green cones) | #0E2549 | 0.042 |
| Tritanopia (no blue cones) | #202831 | 0.063 |
| Achromatopsia (no color) | #262626 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #291F4A
#291F4A
oklch(27.6% 0.077 291.2)
- #292A00
#292A00
oklch(27.5% 0.06 111.2)
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 #291F4A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.045
- Space Cadet #2B2D42 ΔE 0.050
- Dark #1B2431 ΔE 0.059
- Dark Indigo #1F0954 ΔE 0.059
- Dark Purple #35063E ΔE 0.062
- Marine #042E60 ΔE 0.065
- Gunmetal #293241 ΔE 0.066
- Prussian Blue #1D3557 ΔE 0.067
Use #291F4A 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.