#878CAE
Closest named color: Silver Lake Blue (#778DA9). oklch(64.8% 0.051 278.3), rgb(135, 140, 174).
Aa
Black text reads best on this color (6.39:1).
About this color
#878CAE is a medium-light, muted blue. In OKLCH its lightness is 65%, its chroma 0.051 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Silver Lake Blue (#778DA9), ΔE 0.024 away. Black text reads best on it, at 6.39:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Silver Lake Blue (#778DA9) |
| Black text | 6.39:1 |
| White text | 3.28:1 |
Values
| HEX | #878CAE |
| RGB | rgb(135, 140, 174) |
| HSL | hsl(232, 19%, 61%) |
| OKLCH | oklch(64.8% 0.051 278.3) |
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 #878CAE | 3.28:1 | AA large text | Lc -65.6 | Content text, not long reading |
| Black text on #878CAE | 6.39:1 | AA | Lc 43.9 | Non-text elements, placeholder text |
| #878CAE text on white | 3.28:1 | AA large text | Lc 60.2 | Content text, not long reading |
| #878CAE text on black | 6.39:1 | AA | Lc -41.5 | 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
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#E8E9EF
oklch(93.5% 0.008 278.6)
-
Step 200
200
#D7D8E2
oklch(88.4% 0.014 281.5)
-
Step 300
300
#BCBFD1
oklch(80.8% 0.025 278.3)
-
Step 400
400
#9A9FBA
oklch(70.8% 0.04 277.1)
-
Step 500
500 (this color)
#878CAE
oklch(64.8% 0.051 278.3)
-
Step 600
600
#6B7094
oklch(55.5% 0.056 278.3)
-
Step 700
700
#5A5E7E
oklch(49.1% 0.051 278.8)
-
Step 800
800
#494D66
oklch(42.7% 0.042 277.4)
-
Step 900
900
#3D4053
oklch(37.7% 0.033 277.7)
-
Step 950
950
#242631
oklch(27.1% 0.021 276.9)
#878CAE 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) | #838FB0 | 0.009 |
| Deuteranopia (no green cones) | #818CAD | 0.009 |
| Tritanopia (no blue cones) | #7E9297 | 0.046 |
| Achromatopsia (no color) | #8E8E8E | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #878CAE
#878CAE
oklch(64.8% 0.051 278.3)
- #968F6C
#968F6C
oklch(64.7% 0.05 98.1)
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 #878CAE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Silver Lake Blue #778DA9 ΔE 0.024
- Blue Grey #758DA3 ΔE 0.031
- Cool Gray #8D99AE ΔE 0.038
- Light Slate Gray #778899 ΔE 0.040
- Lavender Gray #7E7F9A ΔE 0.044
- Heather #A484AC ΔE 0.046
- Faded Blue #658CBB ΔE 0.046
- Purpley Grey #947E94 ΔE 0.047
Use #878CAE 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.