#878DBF
Closest named color: Silver Lake Blue (#778DA9). oklch(65.7% 0.075 278.8), rgb(135, 141, 191).
Aa
Black text reads best on this color (6.59:1).
About this color
#878DBF is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.075 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Silver Lake Blue (#778DA9), ΔE 0.042 away. Black text reads best on it, at 6.59:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Silver Lake Blue (#778DA9) |
| Black text | 6.59:1 |
| White text | 3.18:1 |
Values
| HEX | #878DBF |
| RGB | rgb(135, 141, 191) |
| HSL | hsl(234, 30%, 64%) |
| OKLCH | oklch(65.7% 0.075 278.8) |
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 #878DBF | 3.18:1 | AA large text | Lc -64.4 | Content text, not long reading |
| Black text on #878DBF | 6.59:1 | AA | Lc 45.1 | Large or bold text, headings |
| #878DBF text on white | 3.18:1 | AA large text | Lc 59.0 | Large or bold text, headings |
| #878DBF text on black | 6.59:1 | AA | Lc -42.7 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E8E9F1
oklch(93.6% 0.011 280.5)
-
Step 200
200
#D6D8E7
oklch(88.5% 0.021 279.9)
-
Step 300
300
#BBBFD9
oklch(81% 0.037 278.6)
-
Step 400
400
#989DC5
oklch(70.6% 0.059 279.2)
-
Step 500
500 (this color)
#878DBF
oklch(65.7% 0.075 278.8)
-
Step 600
600
#696EA2
oklch(55.5% 0.081 279.2)
-
Step 700
700
#575C8B
oklch(49.1% 0.075 278.6)
-
Step 800
800
#474B71
oklch(42.6% 0.063 278.7)
-
Step 900
900
#3C3F5B
oklch(37.7% 0.048 279.1)
-
Step 950
950
#232535
oklch(27% 0.03 278.7)
#878DBF 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) | #7F92C1 | 0.016 |
| Deuteranopia (no green cones) | #7B8EBE | 0.016 |
| Tritanopia (no blue cones) | #79969E | 0.066 |
| Achromatopsia (no color) | #909090 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #878DBF
#878DBF
oklch(65.7% 0.075 278.8)
- #9D925C
#9D925C
oklch(65.7% 0.074 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 #878DBF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Silver Lake Blue #778DA9 ΔE 0.042
- Faded Blue #658CBB ΔE 0.045
- Cool Gray #8D99AE ΔE 0.049
- Heather #A484AC ΔE 0.050
- Blue Grey #758DA3 ΔE 0.051
- Dusty Lavender #AC86A8 ΔE 0.062
- Lavender Gray #7E7F9A ΔE 0.062
- Light Slate Gray #778899 ΔE 0.063
Use #878DBF 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.