#63457E
Closest named color: Twilight (#4E518B). oklch(44.8% 0.096 307.2), rgb(99, 69, 126).
Aa
White text reads best on this color (7.82:1).
About this color
#63457E is a dark, moderately saturated purple. In OKLCH its lightness is 45%, its chroma 0.096 and its hue 307°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.046 away. White text reads best on it, at 7.82:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.096) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.68:1 |
| White text | 7.82:1 |
Values
| HEX | #63457E |
| RGB | rgb(99, 69, 126) |
| HSL | hsl(272, 29%, 38%) |
| OKLCH | oklch(44.8% 0.096 307.2) |
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 #63457E | 7.82:1 | AAA | Lc -91.8 | Preferred for body text |
| Black text on #63457E | 2.68:1 | Fails | Lc 17.0 | Dividers and decoration only |
| #63457E text on white | 7.82:1 | AAA | Lc 87.0 | Fine for body text |
| #63457E text on black | 2.68:1 | Fails | Lc -15.1 | 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 800.
-
Step 50
50
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#EDE7F3
oklch(93.6% 0.017 308.3)
-
Step 200
200
#DED4EA
oklch(88.5% 0.032 306.2)
-
Step 300
300
#CAB8DD
oklch(81% 0.055 307.1)
-
Step 400
400
#AF92CD
oklch(70.7% 0.09 306.7)
-
Step 500
500
#9C76BF
oklch(63.1% 0.114 307.3)
-
Step 600
600
#875DAC
oklch(55.6% 0.126 307.3)
-
Step 700
700
#724D93
oklch(49.1% 0.115 307.1)
-
Step 800
800 (this color)
#63457E
oklch(44.8% 0.096 307.2)
-
Step 900
900
#4C3660
oklch(37.7% 0.074 307.3)
-
Step 950
950
#2D2038
oklch(27.1% 0.047 308.4)
#63457E 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) | #385180 | 0.071 |
| Deuteranopia (no green cones) | #3F527C | 0.065 |
| Tritanopia (no blue cones) | #5F4E5B | 0.071 |
| Achromatopsia (no color) | #525252 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63457E
#63457E
oklch(44.8% 0.096 307.2)
- #465E1C
#465E1C
oklch(44.8% 0.096 127.1)
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 #63457E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.046
- Dusk #4E5481 ΔE 0.050
- Dark Slate Blue #483D8B ΔE 0.060
- Dusty Grape #545775 ΔE 0.060
- Rebecca Purple #663399 ΔE 0.065
- Blueberry #464196 ΔE 0.067
- Light Eggplant #894585 ΔE 0.072
- YInMn Blue #415A77 ΔE 0.079
Use #63457E 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.