#878FC4
Closest named color: Silver Lake Blue (#778DA9). oklch(66.4% 0.079 277.4), rgb(135, 143, 196).
Aa
Black text reads best on this color (6.75:1).
About this color
#878FC4 is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.079 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Silver Lake Blue (#778DA9), ΔE 0.048 away. Black text reads best on it, at 6.75:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Silver Lake Blue (#778DA9) |
| Black text | 6.75:1 |
| White text | 3.10:1 |
Values
| HEX | #878FC4 |
| RGB | rgb(135, 143, 196) |
| HSL | hsl(232, 34%, 65%) |
| OKLCH | oklch(66.4% 0.079 277.4) |
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 #878FC4 | 3.10:1 | AA large text | Lc -63.4 | Content text, not long reading |
| Black text on #878FC4 | 6.75:1 | AA | Lc 46.0 | Large or bold text, headings |
| #878FC4 text on white | 3.10:1 | AA large text | Lc 58.0 | Large or bold text, headings |
| #878FC4 text on black | 6.75:1 | AA | Lc -43.7 | 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
#E8E9F2
oklch(93.6% 0.012 281.1)
-
Step 200
200
#D5D8E8
oklch(88.5% 0.022 277.5)
-
Step 300
300
#BABFDA
oklch(80.9% 0.038 277.2)
-
Step 400
400
#979EC8
oklch(70.9% 0.062 277.3)
-
Step 500
500 (this color)
#878FC4
oklch(66.4% 0.079 277.4)
-
Step 600
600
#676EA5
oklch(55.5% 0.086 277.7)
-
Step 700
700
#565C8E
oklch(49.2% 0.08 277.8)
-
Step 800
800
#464B73
oklch(42.6% 0.067 277.7)
-
Step 900
900
#3B3F5D
oklch(37.7% 0.052 277.8)
-
Step 950
950
#222536
oklch(27% 0.032 276.3)
#878FC4 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) | #7F95C6 | 0.018 |
| Deuteranopia (no green cones) | #7B90C3 | 0.016 |
| Tritanopia (no blue cones) | #7799A1 | 0.071 |
| Achromatopsia (no color) | #929292 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #878FC4
#878FC4
oklch(66.4% 0.079 277.4)
- #A1945A
#A1945A
oklch(66.4% 0.079 97.1)
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 #878FC4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Silver Lake Blue #778DA9 ΔE 0.048
- Faded Blue #658CBB ΔE 0.048
- Cool Gray #8D99AE ΔE 0.050
- Heather #A484AC ΔE 0.054
- Perrywinkle #8F8CE7 ΔE 0.057
- Blue Grey #758DA3 ΔE 0.057
- Greyblue #77A1B5 ΔE 0.063
- Bluey Grey #89A0B0 ΔE 0.064
Use #878FC4 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.