#978FAB
Closest named color: Cool Gray (#8D99AE). oklch(66.6% 0.042 298.3), rgb(151, 143, 171).
Aa
Black text reads best on this color (6.83:1).
About this color
#978FAB is a medium-light, muted purple. In OKLCH its lightness is 67%, its chroma 0.042 and its hue 298°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Cool Gray (#8D99AE), ΔE 0.029 away. Black text reads best on it, at 6.83:1.
| Hue family | Purples |
| Lightness | medium-light (67%) |
| Chroma | muted (0.042) |
| Temperature | in between |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 6.83:1 |
| White text | 3.07:1 |
Values
| HEX | #978FAB |
| RGB | rgb(151, 143, 171) |
| HSL | hsl(257, 14%, 62%) |
| OKLCH | oklch(66.6% 0.042 298.3) |
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 #978FAB | 3.07:1 | AA large text | Lc -63.0 | Content text, not long reading |
| Black text on #978FAB | 6.83:1 | AA | Lc 46.4 | Large or bold text, headings |
| #978FAB text on white | 3.07:1 | AA large text | Lc 57.6 | Large or bold text, headings |
| #978FAB text on black | 6.83:1 | AA | Lc -44.1 | 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#EAE9ED
oklch(93.6% 0.005 297.7)
-
Step 200
200
#DAD8E0
oklch(88.6% 0.011 297.6)
-
Step 300
300
#C2BECC
oklch(80.9% 0.02 299)
-
Step 400
400
#A39DB3
oklch(70.8% 0.032 298)
-
Step 500
500 (this color)
#978FAB
oklch(66.6% 0.042 298.3)
-
Step 600
600
#766E8B
oklch(55.6% 0.045 297.5)
-
Step 700
700
#635C76
oklch(49.1% 0.042 297.2)
-
Step 800
800
#514B60
oklch(42.7% 0.035 298)
-
Step 900
900
#433F4E
oklch(37.8% 0.026 297.4)
-
Step 950
950
#27252E
oklch(27% 0.017 295.4)
#978FAB 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) | #8A93AC | 0.020 |
| Deuteranopia (no green cones) | #8B93AA | 0.020 |
| Tritanopia (no blue cones) | #949398 | 0.035 |
| Achromatopsia (no color) | #939393 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #978FAB
#978FAB
oklch(66.6% 0.042 298.3)
- #91987B
#91987B
oklch(66.6% 0.042 118.6)
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 #978FAB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.029
- Heather #A484AC ΔE 0.035
- Dusty Lavender #AC86A8 ΔE 0.037
- Silver Lake Blue #778DA9 ΔE 0.046
- Bluey Grey #89A0B0 ΔE 0.047
- Purpley Grey #947E94 ΔE 0.050
- Blue Grey #758DA3 ΔE 0.050
- English Lavender #9D8189 ΔE 0.053
Use #978FAB 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.