#878DB0
Closest named color: Silver Lake Blue (#778DA9). oklch(65.1% 0.053 277.2), rgb(135, 141, 176).
Aa
Black text reads best on this color (6.46:1).
About this color
#878DB0 is a medium-light, muted blue. In OKLCH its lightness is 65%, its chroma 0.053 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Silver Lake Blue (#778DA9), ΔE 0.025 away. Black text reads best on it, at 6.46:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Silver Lake Blue (#778DA9) |
| Black text | 6.46:1 |
| White text | 3.24:1 |
Values
| HEX | #878DB0 |
| RGB | rgb(135, 141, 176) |
| HSL | hsl(231, 21%, 61%) |
| OKLCH | oklch(65.1% 0.053 277.2) |
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 #878DB0 | 3.24:1 | AA large text | Lc -65.2 | Content text, not long reading |
| Black text on #878DB0 | 6.46:1 | AA | Lc 44.3 | Non-text elements, placeholder text |
| #878DB0 text on white | 3.24:1 | AA large text | Lc 59.8 | Large or bold text, headings |
| #878DB0 text on black | 6.46:1 | 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
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#E8E9EF
oklch(93.5% 0.008 278.6)
-
Step 200
200
#D6D8E3
oklch(88.4% 0.015 277.8)
-
Step 300
300
#BCBFD2
oklch(80.8% 0.027 278.6)
-
Step 400
400
#9A9FBB
oklch(70.8% 0.041 277.3)
-
Step 500
500 (this color)
#878DB0
oklch(65.1% 0.053 277.2)
-
Step 600
600
#6B7195
oklch(55.7% 0.056 277.1)
-
Step 700
700
#595E7F
oklch(49.1% 0.053 277.6)
-
Step 800
800
#494D67
oklch(42.7% 0.043 277.6)
-
Step 900
900
#3D4054
oklch(37.7% 0.034 278)
-
Step 950
950
#242631
oklch(27.1% 0.021 276.9)
#878DB0 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) | #8390B2 | 0.009 |
| Deuteranopia (no green cones) | #818DAF | 0.009 |
| Tritanopia (no blue cones) | #7D9399 | 0.046 |
| Achromatopsia (no color) | #8F8F8F | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #878DB0
#878DB0
oklch(65.1% 0.053 277.2)
- #98906B
#98906B
oklch(65.1% 0.053 97.3)
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 #878DB0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Silver Lake Blue #778DA9 ΔE 0.025
- Blue Grey #758DA3 ΔE 0.033
- Cool Gray #8D99AE ΔE 0.037
- Light Slate Gray #778899 ΔE 0.043
- Faded Blue #658CBB ΔE 0.046
- Heather #A484AC ΔE 0.047
- Lavender Gray #7E7F9A ΔE 0.048
- Purpley Grey #947E94 ΔE 0.050
Use #878DB0 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.