#8B99AF
Closest named color: Cool Gray (#8D99AE). oklch(67.9% 0.036 259.4), rgb(139, 153, 175).
Aa
Black text reads best on this color (7.27:1).
About this color
#8B99AF is a medium-light, muted blue. In OKLCH its lightness is 68%, its chroma 0.036 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Gray (#8D99AE), ΔE 0.003 away. Black text reads best on it, at 7.27:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | muted (0.036) |
| Temperature | cool |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 7.27:1 |
| White text | 2.88:1 |
Values
| HEX | #8B99AF |
| RGB | rgb(139, 153, 175) |
| HSL | hsl(217, 18%, 62%) |
| OKLCH | oklch(67.9% 0.036 259.4) |
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 #8B99AF | 2.88:1 | Fails | Lc -60.5 | Content text, not long reading |
| Black text on #8B99AF | 7.27:1 | AAA | Lc 48.9 | Large or bold text, headings |
| #8B99AF text on white | 2.88:1 | Fails | Lc 55.1 | Large or bold text, headings |
| #8B99AF text on black | 7.27:1 | AAA | Lc -46.7 | 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
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E7EAEE
oklch(93.6% 0.006 255.5)
-
Step 200
200
#D4D9E2
oklch(88.4% 0.013 262.4)
-
Step 300
300
#B8C1D0
oklch(80.9% 0.023 260.7)
-
Step 400
400 (this color)
#8B99AF
oklch(67.9% 0.036 259.4)
-
Step 500
500
#798AA6
oklch(63% 0.047 260.4)
-
Step 600
600
#627491
oklch(55.5% 0.05 259.9)
-
Step 700
700
#51627C
oklch(49.2% 0.047 258.8)
-
Step 800
800
#425065
oklch(42.8% 0.039 258.3)
-
Step 900
900
#384252
oklch(37.7% 0.031 259.7)
-
Step 950
950
#212730
oklch(27.1% 0.019 258.4)
#8B99AF 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) | #929AB0 | 0.010 |
| Deuteranopia (no green cones) | #8E96AF | 0.009 |
| Tritanopia (no blue cones) | #829EA0 | 0.033 |
| Achromatopsia (no color) | #989898 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #8B99AF
#8B99AF
oklch(67.9% 0.036 259.4)
- #A4967F
#A4967F
oklch(67.9% 0.037 80.2)
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 #8B99AF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.003
- Bluey Grey #89A0B0 ΔE 0.019
- Bluegrey #85A3B2 ΔE 0.027
- Greyblue #77A1B5 ΔE 0.030
- Cool Grey #95A3A6 ΔE 0.038
- Cool Steel #97A7B3 ΔE 0.043
- Silver Lake Blue #778DA9 ΔE 0.045
- Blue Grey #758DA3 ΔE 0.048
Use #8B99AF 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.