#878FC0
Closest named color: Silver Lake Blue (#778DA9). oklch(66.2% 0.073 277), rgb(135, 143, 192).
Aa
Black text reads best on this color (6.72:1).
About this color
#878FC0 is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.073 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Silver Lake Blue (#778DA9), ΔE 0.042 away. Black text reads best on it, at 6.72:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Silver Lake Blue (#778DA9) |
| Black text | 6.72:1 |
| White text | 3.12:1 |
Values
| HEX | #878FC0 |
| RGB | rgb(135, 143, 192) |
| HSL | hsl(232, 31%, 64%) |
| OKLCH | oklch(66.2% 0.073 277) |
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 #878FC0 | 3.12:1 | AA large text | Lc -63.7 | Content text, not long reading |
| Black text on #878FC0 | 6.72:1 | AA | Lc 45.8 | Large or bold text, headings |
| #878FC0 text on white | 3.12:1 | AA large text | Lc 58.3 | Large or bold text, headings |
| #878FC0 text on black | 6.72:1 | AA | Lc -43.5 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E8E9F1
oklch(93.6% 0.011 280.5)
-
Step 200
200
#D5D8E7
oklch(88.4% 0.021 276.9)
-
Step 300
300
#BABFD8
oklch(80.9% 0.036 276.6)
-
Step 400
400
#979EC5
oklch(70.7% 0.058 276.9)
-
Step 500
500 (this color)
#878FC0
oklch(66.2% 0.073 277)
-
Step 600
600
#676FA2
oklch(55.6% 0.08 276.6)
-
Step 700
700
#565D8B
oklch(49.2% 0.074 276.7)
-
Step 800
800
#464C71
oklch(42.8% 0.062 276.4)
-
Step 900
900
#3B3F5B
oklch(37.6% 0.048 277.5)
-
Step 950
950
#232535
oklch(27% 0.03 278.7)
#878FC0 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) | #8194C2 | 0.014 |
| Deuteranopia (no green cones) | #7D90BF | 0.014 |
| Tritanopia (no blue cones) | #7898A0 | 0.065 |
| Achromatopsia (no color) | #929292 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #878FC0
#878FC0
oklch(66.2% 0.073 277)
- #9F935E
#9F935E
oklch(66.1% 0.073 97)
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 #878FC0, 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
- Cool Gray #8D99AE ΔE 0.046
- Faded Blue #658CBB ΔE 0.046
- Blue Grey #758DA3 ΔE 0.052
- Heather #A484AC ΔE 0.052
- Greyblue #77A1B5 ΔE 0.060
- Bluey Grey #89A0B0 ΔE 0.060
- Dusty Lavender #AC86A8 ΔE 0.063
Use #878FC0 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.