#8F9BB3
Closest named color: Cool Gray (#8D99AE). oklch(68.8% 0.038 264.3), rgb(143, 155, 179).
Aa
Black text reads best on this color (7.50:1).
About this color
#8F9BB3 is a medium-light, muted blue. In OKLCH its lightness is 69%, its chroma 0.038 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Gray (#8D99AE), ΔE 0.009 away. Black text reads best on it, at 7.50:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | muted (0.038) |
| Temperature | cool |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 7.50:1 |
| White text | 2.79:1 |
Values
| HEX | #8F9BB3 |
| RGB | rgb(143, 155, 179) |
| HSL | hsl(220, 19%, 63%) |
| OKLCH | oklch(68.8% 0.038 264.3) |
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 #8F9BB3 | 2.79:1 | Fails | Lc -59.1 | Large or bold text, headings |
| Black text on #8F9BB3 | 7.50:1 | AAA | Lc 50.2 | Large or bold text, headings |
| #8F9BB3 text on white | 2.79:1 | Fails | Lc 53.9 | Large or bold text, headings |
| #8F9BB3 text on black | 7.50:1 | AAA | Lc -48.0 | Large or bold text, headings |
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 400.
-
Step 50
50
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E7EAEF
oklch(93.6% 0.007 260.7)
-
Step 200
200
#D5D9E2
oklch(88.5% 0.013 266.7)
-
Step 300
300
#B9C1D0
oklch(80.9% 0.023 263.2)
-
Step 400
400 (this color)
#8F9BB3
oklch(68.8% 0.038 264.3)
-
Step 500
500
#7B8AA8
oklch(63.2% 0.049 264.1)
-
Step 600
600
#647393
oklch(55.6% 0.053 265.1)
-
Step 700
700
#53617D
oklch(49.2% 0.048 264)
-
Step 800
800
#444F66
oklch(42.7% 0.041 264.8)
-
Step 900
900
#394253
oklch(37.8% 0.032 263)
-
Step 950
950
#212630
oklch(26.8% 0.02 264.2)
#8F9BB3 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) | #949CB4 | 0.008 |
| Deuteranopia (no green cones) | #9099B2 | 0.005 |
| Tritanopia (no blue cones) | #86A0A3 | 0.034 |
| Achromatopsia (no color) | #9A9A9A | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #8F9BB3
#8F9BB3
oklch(68.8% 0.038 264.3)
- #A69980
#A69980
oklch(68.7% 0.038 83.7)
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 #8F9BB3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.009
- Bluey Grey #89A0B0 ΔE 0.017
- Bluegrey #85A3B2 ΔE 0.025
- Greyblue #77A1B5 ΔE 0.032
- Cool Grey #95A3A6 ΔE 0.035
- Cool Steel #97A7B3 ΔE 0.037
- Pewter #96A8A1 ΔE 0.053
- Silver Lake Blue #778DA9 ΔE 0.053
Use #8F9BB3 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.