#5451A1
Closest named color: Twilight (#4E518B). oklch(47.9% 0.126 282.2), rgb(84, 81, 161).
Aa
White text reads best on this color (6.84:1).
About this color
#5451A1 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 48%, its chroma 0.126 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.037 away. White text reads best on it, at 6.84:1.
| Hue family | Purples |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.126) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.06:1 |
| White text | 6.84:1 |
Values
| HEX | #5451A1 |
| RGB | rgb(84, 81, 161) |
| HSL | hsl(242, 33%, 47%) |
| OKLCH | oklch(47.9% 0.126 282.2) |
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 #5451A1 | 6.84:1 | AA | Lc -88.5 | Fine for body text |
| Black text on #5451A1 | 3.06:1 | AA large text | Lc 20.6 | Dividers and decoration only |
| #5451A1 text on white | 6.84:1 | AA | Lc 83.5 | Fine for body text |
| #5451A1 text on black | 3.06:1 | AA large text | Lc -18.5 | Dividers and decoration only |
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 700.
-
Step 50
50
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E8E9F6
oklch(93.7% 0.018 282.5)
-
Step 200
200
#D5D7F0
oklch(88.5% 0.034 282)
-
Step 300
300
#BABCE8
oklch(80.8% 0.062 282.9)
-
Step 400
400
#9799DC
oklch(70.7% 0.097 282.3)
-
Step 500
500
#7F7FD2
oklch(63.2% 0.123 282.3)
-
Step 600
600
#6966BF
oklch(55.5% 0.135 282.6)
-
Step 700
700 (this color)
#5451A1
oklch(47.9% 0.126 282.2)
-
Step 800
800
#474686
oklch(42.8% 0.104 281.8)
-
Step 900
900
#3B3B6B
oklch(37.7% 0.081 281.8)
-
Step 950
950
#23233F
oklch(27.1% 0.051 282.4)
#5451A1 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) | #2E5DA4 | 0.052 |
| Deuteranopia (no green cones) | #29589F | 0.053 |
| Tritanopia (no blue cones) | #396271 | 0.108 |
| Achromatopsia (no color) | #5B5B5B | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5451A1
#5451A1
oklch(47.9% 0.126 282.2)
- #695F00
#695F00
oklch(48% 0.101 102.3)
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 #5451A1, closest first.
No curated palette has a color within ΔE 0.04 of #5451A1.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.037
- Dusky Blue #475F94 ΔE 0.049
- Denim Blue #3B5B92 ΔE 0.050
- Blueberry #464196 ΔE 0.051
- Dusk #4E5481 ΔE 0.056
- Iris #6258C4 ΔE 0.061
- Dark Slate Blue #483D8B ΔE 0.065
- Dusk Blue #26538D ΔE 0.067
Use #5451A1 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.