#878EAA
Closest named color: Silver Lake Blue (#778DA9). oklch(65.1% 0.043 274.1), rgb(135, 142, 170).
Aa
Black text reads best on this color (6.47:1).
About this color
#878EAA is a medium-light, muted blue. In OKLCH its lightness is 65%, its chroma 0.043 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Silver Lake Blue (#778DA9), ΔE 0.022 away. Black text reads best on it, at 6.47:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Silver Lake Blue (#778DA9) |
| Black text | 6.47:1 |
| White text | 3.24:1 |
Values
| HEX | #878EAA |
| RGB | rgb(135, 142, 170) |
| HSL | hsl(228, 17%, 60%) |
| OKLCH | oklch(65.1% 0.043 274.1) |
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 #878EAA | 3.24:1 | AA large text | Lc -65.1 | Content text, not long reading |
| Black text on #878EAA | 6.47:1 | AA | Lc 44.4 | Non-text elements, placeholder text |
| #878EAA text on white | 3.24:1 | AA large text | Lc 59.7 | Large or bold text, headings |
| #878EAA text on black | 6.47:1 | AA | Lc -42.0 | 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
#E8EAEE
oklch(93.7% 0.006 264.5)
-
Step 200
200
#D6D9E1
oklch(88.5% 0.011 269.5)
-
Step 300
300
#BCC0CE
oklch(80.9% 0.02 273.2)
-
Step 400
400
#9AA0B6
oklch(70.8% 0.033 273.5)
-
Step 500
500 (this color)
#878EAA
oklch(65.1% 0.043 274.1)
-
Step 600
600
#6B728F
oklch(55.7% 0.046 274.2)
-
Step 700
700
#595F7A
oklch(49.1% 0.044 274.9)
-
Step 800
800
#494E63
oklch(42.8% 0.035 274.4)
-
Step 900
900
#3D4151
oklch(37.8% 0.028 274)
-
Step 950
950
#24262F
oklch(27% 0.017 275.4)
#878EAA 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) | #8690AB | 0.005 |
| Deuteranopia (no green cones) | #848EA9 | 0.005 |
| Tritanopia (no blue cones) | #7F9397 | 0.038 |
| Achromatopsia (no color) | #8F8F8F | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #878EAA
#878EAA
oklch(65.1% 0.043 274.1)
- #988F72
#988F72
oklch(65% 0.043 92.9)
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 #878EAA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Silver Lake Blue #778DA9 ΔE 0.022
- Blue Grey #758DA3 ΔE 0.028
- Cool Gray #8D99AE ΔE 0.032
- Light Slate Gray #778899 ΔE 0.037
- Lavender Gray #7E7F9A ΔE 0.046
- Purpley Grey #947E94 ΔE 0.048
- Steel #738595 ΔE 0.048
- Bluey Grey #89A0B0 ΔE 0.049
Use #878EAA 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.