#8591A1
Closest named color: Blue Grey (#758DA3). oklch(65.2% 0.028 255.6), rgb(133, 145, 161).
Aa
Black text reads best on this color (6.56:1).
About this color
#8591A1 is a medium-light close to neutral grey. In OKLCH its lightness is 65%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Blue Grey (#758DA3), ΔE 0.026 away. Black text reads best on it, at 6.56:1.
| Hue family | Neutrals |
| Lightness | medium-light (65%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Blue Grey (#758DA3) |
| Black text | 6.56:1 |
| White text | 3.20:1 |
Values
| HEX | #8591A1 |
| RGB | rgb(133, 145, 161) |
| HSL | hsl(214, 13%, 58%) |
| OKLCH | oklch(65.2% 0.028 255.6) |
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 #8591A1 | 3.20:1 | AA large text | Lc -64.6 | Content text, not long reading |
| Black text on #8591A1 | 6.56:1 | AA | Lc 44.8 | Non-text elements, placeholder text |
| #8591A1 text on white | 3.20:1 | AA large text | Lc 59.2 | Large or bold text, headings |
| #8591A1 text on black | 6.56:1 | AA | Lc -42.5 | 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E8EAEC
oklch(93.6% 0.003 247.9)
-
Step 200
200
#D6D9DE
oklch(88.4% 0.008 260.7)
-
Step 300
300
#BBC1C9
oklch(80.9% 0.013 255.5)
-
Step 400
400
#98A1AE
oklch(70.6% 0.022 257.5)
-
Step 500
500 (this color)
#8591A1
oklch(65.2% 0.028 255.6)
-
Step 600
600
#687485
oklch(55.5% 0.03 257.1)
-
Step 700
700
#566271
oklch(49.1% 0.028 254.1)
-
Step 800
800
#47505C
oklch(42.8% 0.023 255.6)
-
Step 900
900
#3B424B
oklch(37.6% 0.018 254.7)
-
Step 950
950
#23272C
oklch(27.1% 0.011 254)
#8591A1 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) | #8C91A2 | 0.010 |
| Deuteranopia (no green cones) | #898FA1 | 0.007 |
| Tritanopia (no blue cones) | #7E9496 | 0.024 |
| Achromatopsia (no color) | #909090 | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #8591A1
#8591A1
oklch(65.2% 0.028 255.6)
- #9A8E7E
#9A8E7E
oklch(65.3% 0.027 75.1)
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 #8591A1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Grey #758DA3 ΔE 0.026
- Silver Lake Blue #778DA9 ΔE 0.027
- Cool Gray #8D99AE ΔE 0.029
- Light Slate Gray #778899 ΔE 0.034
- Bluey Grey #89A0B0 ΔE 0.043
- Steel #738595 ΔE 0.045
- Warm Grey #978A84 ΔE 0.045
- Greyblue #77A1B5 ΔE 0.046
Use #8591A1 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.