#8191BF
Closest named color: Silver Lake Blue (#778DA9). oklch(66.1% 0.071 269.5), rgb(129, 145, 191).
Aa
Black text reads best on this color (6.73:1).
About this color
#8191BF is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.071 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Silver Lake Blue (#778DA9), ΔE 0.037 away. Black text reads best on it, at 6.73:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Silver Lake Blue (#778DA9) |
| Black text | 6.73:1 |
| White text | 3.11:1 |
Values
| HEX | #8191BF |
| RGB | rgb(129, 145, 191) |
| HSL | hsl(225, 33%, 63%) |
| OKLCH | oklch(66.1% 0.071 269.5) |
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 #8191BF | 3.11:1 | AA large text | Lc -63.6 | Content text, not long reading |
| Black text on #8191BF | 6.73:1 | AA | Lc 45.9 | Large or bold text, headings |
| #8191BF text on white | 3.11:1 | AA large text | Lc 58.2 | Large or bold text, headings |
| #8191BF text on black | 6.73:1 | 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
#E7EAF1
oklch(93.7% 0.01 267.4)
-
Step 200
200
#D4D9E6
oklch(88.5% 0.019 269.1)
-
Step 300
300
#B7C0D8
oklch(80.8% 0.035 269.2)
-
Step 400
400
#93A0C4
oklch(70.8% 0.055 269.4)
-
Step 500
500 (this color)
#8191BF
oklch(66.1% 0.071 269.5)
-
Step 600
600
#6171A1
oklch(55.5% 0.077 269.6)
-
Step 700
700
#505F8A
oklch(49.2% 0.072 269)
-
Step 800
800
#424D70
oklch(42.6% 0.06 270.3)
-
Step 900
900
#38415B
oklch(37.9% 0.046 269.4)
-
Step 950
950
#212635
oklch(27.1% 0.029 270.1)
#8191BF 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) | #8295C1 | 0.011 |
| Deuteranopia (no green cones) | #7D8FBE | 0.008 |
| Tritanopia (no blue cones) | #709AA1 | 0.063 |
| Achromatopsia (no color) | #929292 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #8191BF
#8191BF
oklch(66.1% 0.071 269.5)
- #A4915F
#A4915F
oklch(66.2% 0.071 89.5)
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 #8191BF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Silver Lake Blue #778DA9 ΔE 0.037
- Faded Blue #658CBB ΔE 0.040
- Cool Gray #8D99AE ΔE 0.042
- Blue Grey #758DA3 ΔE 0.046
- Greyblue #77A1B5 ΔE 0.052
- Bluey Grey #89A0B0 ΔE 0.055
- Heather #A484AC ΔE 0.059
- Light Slate Gray #778899 ΔE 0.060
Use #8191BF 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.