#8191A3
Closest named color: Blue Grey (#758DA3). oklch(65% 0.033 251.4), rgb(129, 145, 163).
Aa
Black text reads best on this color (6.51:1).
About this color
#8191A3 is a medium-light, muted blue. In OKLCH its lightness is 65%, its chroma 0.033 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Grey (#758DA3), ΔE 0.021 away. Black text reads best on it, at 6.51:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Blue Grey (#758DA3) |
| Black text | 6.51:1 |
| White text | 3.22:1 |
Values
| HEX | #8191A3 |
| RGB | rgb(129, 145, 163) |
| HSL | hsl(212, 16%, 57%) |
| OKLCH | oklch(65% 0.033 251.4) |
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 #8191A3 | 3.22:1 | AA large text | Lc -64.9 | Content text, not long reading |
| Black text on #8191A3 | 6.51:1 | AA | Lc 44.6 | Non-text elements, placeholder text |
| #8191A3 text on white | 3.22:1 | AA large text | Lc 59.5 | Large or bold text, headings |
| #8191A3 text on black | 6.51:1 | AA | Lc -42.2 | 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
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E8EAED
oklch(93.6% 0.005 258.3)
-
Step 200
200
#D5DADF
oklch(88.6% 0.009 247.9)
-
Step 300
300
#B9C2CB
oklch(81% 0.016 248)
-
Step 400
400
#95A2B0
oklch(70.6% 0.025 250.2)
-
Step 500
500 (this color)
#8191A3
oklch(65% 0.033 251.4)
-
Step 600
600
#647588
oklch(55.5% 0.036 251.3)
-
Step 700
700
#536273
oklch(49% 0.033 251.7)
-
Step 800
800
#44505E
oklch(42.6% 0.028 252.4)
-
Step 900
900
#39434D
oklch(37.8% 0.022 248.4)
-
Step 950
950
#22272D
oklch(27% 0.013 253)
#8191A3 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) | #8B91A4 | 0.014 |
| Deuteranopia (no green cones) | #878EA3 | 0.011 |
| Tritanopia (no blue cones) | #789597 | 0.028 |
| Achromatopsia (no color) | #8F8F8F | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #8191A3
#8191A3
oklch(65% 0.033 251.4)
- #9C8C7A
#9C8C7A
oklch(64.9% 0.032 70.5)
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 #8191A3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Grey #758DA3 ΔE 0.021
- Silver Lake Blue #778DA9 ΔE 0.022
- Cool Gray #8D99AE ΔE 0.031
- Light Slate Gray #778899 ΔE 0.031
- Steel #738595 ΔE 0.042
- Bluey Grey #89A0B0 ΔE 0.044
- Greyblue #77A1B5 ΔE 0.045
- Lavender Gray #7E7F9A ΔE 0.050
Use #8191A3 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.