#7978DB
Closest named color: Medium Purple (#9370DB). oklch(61.9% 0.147 281.7), rgb(121, 120, 219).
Aa
Black text reads best on this color (5.52:1).
About this color
#7978DB is a medium-dark, vivid purple. In OKLCH its lightness is 62%, its chroma 0.147 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Purple (#9370DB), ΔE 0.042 away. Black text reads best on it, at 5.52:1.
| Hue family | Purples |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.147) |
| Temperature | cool |
| Nearest name | Medium Purple (#9370DB) |
| Black text | 5.52:1 |
| White text | 3.80:1 |
Values
| HEX | #7978DB |
| RGB | rgb(121, 120, 219) |
| HSL | hsl(241, 58%, 66%) |
| OKLCH | oklch(61.9% 0.147 281.7) |
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 #7978DB | 3.80:1 | AA large text | Lc -70.9 | Content text, not long reading |
| Black text on #7978DB | 5.52:1 | AA | Lc 38.7 | Non-text elements, placeholder text |
| #7978DB text on white | 3.80:1 | AA large text | Lc 65.4 | Content text, not long reading |
| #7978DB text on black | 5.52:1 | AA | Lc -36.3 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E7E9F8
oklch(93.7% 0.02 279.9)
-
Step 200
200
#D4D7F4
oklch(88.6% 0.04 280.9)
-
Step 300
300
#B8BCEF
oklch(81% 0.072 281.2)
-
Step 400
400
#9597E6
oklch(70.6% 0.115 281.9)
-
Step 500
500 (this color)
#7978DB
oklch(61.9% 0.147 281.7)
-
Step 600
600
#6763CD
oklch(55.7% 0.159 281.6)
-
Step 700
700
#5651B1
oklch(49.1% 0.148 281.8)
-
Step 800
800
#46438F
oklch(42.7% 0.122 281.7)
-
Step 900
900
#3A3972
oklch(37.6% 0.095 281.6)
-
Step 950
950
#222243
oklch(27% 0.06 281.6)
#7978DB 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) | #5186DF | 0.055 |
| Deuteranopia (no green cones) | #4B7FD9 | 0.056 |
| Tritanopia (no blue cones) | #598D9F | 0.127 |
| Achromatopsia (no color) | #838383 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7978DB
#7978DB
oklch(61.9% 0.147 281.7)
- #968800
#968800
oklch(62% 0.13 102.2)
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 #7978DB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Purple #9370DB ΔE 0.042
- Cornflower #6A79F7 ΔE 0.046
- Soft Blue #6488EA ΔE 0.047
- Medium Slate Blue #7B68EE ΔE 0.051
- Lavender Blue #8B88F8 ΔE 0.062
- Deep Lilac #966EBD ΔE 0.063
- Perrywinkle #8F8CE7 ΔE 0.064
- Periwinkle #8E82FE ΔE 0.064
Use #7978DB 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.