#878AA2
Closest named color: Silver Lake Blue (#778DA9). oklch(63.9% 0.036 279.7), rgb(135, 138, 162).
Aa
Black text reads best on this color (6.18:1).
About this color
#878AA2 is a medium-light, muted blue. In OKLCH its lightness is 64%, its chroma 0.036 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Silver Lake Blue (#778DA9), ΔE 0.023 away. Black text reads best on it, at 6.18:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | muted (0.036) |
| Temperature | cool |
| Nearest name | Silver Lake Blue (#778DA9) |
| Black text | 6.18:1 |
| White text | 3.39:1 |
Values
| HEX | #878AA2 |
| RGB | rgb(135, 138, 162) |
| HSL | hsl(233, 13%, 58%) |
| OKLCH | oklch(63.9% 0.036 279.7) |
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 #878AA2 | 3.39:1 | AA large text | Lc -66.9 | Content text, not long reading |
| Black text on #878AA2 | 6.18:1 | AA | Lc 42.6 | Non-text elements, placeholder text |
| #878AA2 text on white | 3.39:1 | AA large text | Lc 61.4 | Content text, not long reading |
| #878AA2 text on black | 6.18:1 | AA | Lc -40.3 | 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E9E9ED
oklch(93.5% 0.005 286.3)
-
Step 200
200
#D7D8E0
oklch(88.4% 0.011 280.5)
-
Step 300
300
#BEC0CC
oklch(81% 0.017 278.4)
-
Step 400
400
#9D9FB2
oklch(70.7% 0.028 280.9)
-
Step 500
500 (this color)
#878AA2
oklch(63.9% 0.036 279.7)
-
Step 600
600
#6E718A
oklch(55.5% 0.039 279.7)
-
Step 700
700
#5C5F75
oklch(49.1% 0.035 278.9)
-
Step 800
800
#4B4D60
oklch(42.6% 0.032 280.3)
-
Step 900
900
#3F404E
oklch(37.6% 0.024 282)
-
Step 950
950
#25262E
oklch(27.1% 0.015 279.7)
#878AA2 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) | #848CA3 | 0.006 |
| Deuteranopia (no green cones) | #838AA1 | 0.006 |
| Tritanopia (no blue cones) | #818E92 | 0.032 |
| Achromatopsia (no color) | #8B8B8B | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #878AA2
#878AA2
oklch(63.9% 0.036 279.7)
- #918D74
#918D74
oklch(64% 0.036 99.8)
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 #878AA2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Silver Lake Blue #778DA9 ΔE 0.023
- Blue Grey #758DA3 ΔE 0.025
- Light Slate Gray #778899 ΔE 0.028
- Lavender Gray #7E7F9A ΔE 0.034
- Purpley Grey #947E94 ΔE 0.036
- Steel #738595 ΔE 0.037
- Cool Gray #8D99AE ΔE 0.043
- English Lavender #9D8189 ΔE 0.047
Use #878AA2 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.