#8187AC
Closest named color: Silver Lake Blue (#778DA9). oklch(63.2% 0.056 277.5), rgb(129, 135, 172).
Aa
Black text reads best on this color (5.99:1).
About this color
#8187AC is a medium-light, muted blue. In OKLCH its lightness is 63%, its chroma 0.056 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Silver Lake Blue (#778DA9), ΔE 0.022 away. Black text reads best on it, at 5.99:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Silver Lake Blue (#778DA9) |
| Black text | 5.99:1 |
| White text | 3.50:1 |
Values
| HEX | #8187AC |
| RGB | rgb(129, 135, 172) |
| HSL | hsl(232, 21%, 59%) |
| OKLCH | oklch(63.2% 0.056 277.5) |
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 #8187AC | 3.50:1 | AA large text | Lc -68.1 | Content text, not long reading |
| Black text on #8187AC | 5.99:1 | AA | Lc 41.5 | Non-text elements, placeholder text |
| #8187AC text on white | 3.50:1 | AA large text | Lc 62.6 | Content text, not long reading |
| #8187AC text on black | 5.99:1 | AA | Lc -39.1 | 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
#BCBFD3
oklch(80.9% 0.028 279)
-
Step 400
400
#999FBC
oklch(70.7% 0.043 276)
-
Step 500
500 (this color)
#8187AC
oklch(63.2% 0.056 277.5)
-
Step 600
600
#6A7097
oklch(55.5% 0.061 277.4)
-
Step 700
700
#595E81
oklch(49.2% 0.056 277.8)
-
Step 800
800
#484D69
oklch(42.7% 0.047 276.4)
-
Step 900
900
#3D4055
oklch(37.8% 0.036 278.2)
-
Step 950
950
#232532
oklch(26.8% 0.024 277.8)
#8187AC 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) | #7D8BAE | 0.011 |
| Deuteranopia (no green cones) | #7A87AB | 0.010 |
| Tritanopia (no blue cones) | #778E93 | 0.051 |
| Achromatopsia (no color) | #898989 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #8187AC
#8187AC
oklch(63.2% 0.056 277.5)
- #938A63
#938A63
oklch(63.1% 0.056 96.7)
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 #8187AC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Silver Lake Blue #778DA9 ΔE 0.022
- Blue Grey #758DA3 ΔE 0.029
- Lavender Gray #7E7F9A ΔE 0.031
- Light Slate Gray #778899 ΔE 0.034
- Faded Blue #658CBB ΔE 0.040
- Steel #738595 ΔE 0.041
- Purpley Grey #947E94 ΔE 0.044
- Dusty Blue #5A86AD ΔE 0.050
Use #8187AC 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.