#878FC3
Closest named color: Silver Lake Blue (#778DA9). oklch(66.3% 0.078 277.3), rgb(135, 143, 195).
Aa
Black text reads best on this color (6.74:1).
About this color
#878FC3 is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.078 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Silver Lake Blue (#778DA9), ΔE 0.046 away. Black text reads best on it, at 6.74:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Silver Lake Blue (#778DA9) |
| Black text | 6.74:1 |
| White text | 3.11:1 |
Values
| HEX | #878FC3 |
| RGB | rgb(135, 143, 195) |
| HSL | hsl(232, 33%, 65%) |
| OKLCH | oklch(66.3% 0.078 277.3) |
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 #878FC3 | 3.11:1 | AA large text | Lc -63.5 | Content text, not long reading |
| Black text on #878FC3 | 6.74:1 | AA | Lc 46.0 | Large or bold text, headings |
| #878FC3 text on white | 3.11:1 | AA large text | Lc 58.1 | Large or bold text, headings |
| #878FC3 text on black | 6.74:1 | AA | Lc -43.6 | 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
#BABFDA
oklch(80.9% 0.038 277.2)
-
Step 400
400
#979EC7
oklch(70.8% 0.06 277.2)
-
Step 500
500 (this color)
#878FC3
oklch(66.3% 0.078 277.3)
-
Step 600
600
#676EA5
oklch(55.5% 0.086 277.7)
-
Step 700
700
#565C8D
oklch(49.1% 0.079 277.7)
-
Step 800
800
#464B72
oklch(42.6% 0.065 277.7)
-
Step 900
900
#3B3F5C
oklch(37.7% 0.05 277.7)
-
Step 950
950
#222536
oklch(27% 0.032 276.3)
#878FC3 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) | #8094C5 | 0.015 |
| Deuteranopia (no green cones) | #7C90C2 | 0.015 |
| Tritanopia (no blue cones) | #7799A1 | 0.070 |
| Achromatopsia (no color) | #929292 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #878FC3
#878FC3
oklch(66.3% 0.078 277.3)
- #A0945B
#A0945B
oklch(66.4% 0.078 97.8)
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 #878FC3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Silver Lake Blue #778DA9 ΔE 0.046
- Faded Blue #658CBB ΔE 0.047
- Cool Gray #8D99AE ΔE 0.049
- Heather #A484AC ΔE 0.054
- Blue Grey #758DA3 ΔE 0.056
- Perrywinkle #8F8CE7 ΔE 0.059
- Greyblue #77A1B5 ΔE 0.062
- Bluey Grey #89A0B0 ΔE 0.063
Use #878FC3 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.