#8A99B3
Closest named color: Cool Gray (#8D99AE). oklch(68% 0.042 261.5), rgb(138, 153, 179).
Aa
Black text reads best on this color (7.28:1).
About this color
#8A99B3 is a medium-light, muted blue. In OKLCH its lightness is 68%, its chroma 0.042 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Gray (#8D99AE), ΔE 0.008 away. Black text reads best on it, at 7.28:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 7.28:1 |
| White text | 2.88:1 |
Values
| HEX | #8A99B3 |
| RGB | rgb(138, 153, 179) |
| HSL | hsl(218, 21%, 62%) |
| OKLCH | oklch(68% 0.042 261.5) |
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 #8A99B3 | 2.88:1 | Fails | Lc -60.4 | Content text, not long reading |
| Black text on #8A99B3 | 7.28:1 | AAA | Lc 49.0 | Large or bold text, headings |
| #8A99B3 text on white | 2.88:1 | Fails | Lc 55.1 | Large or bold text, headings |
| #8A99B3 text on black | 7.28:1 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E7EAEF
oklch(93.6% 0.007 260.7)
-
Step 200
200
#D4D9E3
oklch(88.4% 0.015 264.5)
-
Step 300
300
#B7C1D2
oklch(80.8% 0.026 261.1)
-
Step 400
400 (this color)
#8A99B3
oklch(68% 0.042 261.5)
-
Step 500
500
#778AAB
oklch(63.1% 0.055 261.4)
-
Step 600
600
#607496
oklch(55.6% 0.058 260.9)
-
Step 700
700
#4F6180
oklch(49% 0.055 261.1)
-
Step 800
800
#414F68
oklch(42.6% 0.045 261.8)
-
Step 900
900
#374255
oklch(37.7% 0.036 261.2)
-
Step 950
950
#202732
oklch(27.1% 0.023 259.3)
#8A99B3 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) | #919AB4 | 0.010 |
| Deuteranopia (no green cones) | #8D96B2 | 0.009 |
| Tritanopia (no blue cones) | #809EA1 | 0.037 |
| Achromatopsia (no color) | #989898 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #8A99B3
#8A99B3
oklch(68% 0.042 261.5)
- #A6967B
#A6967B
oklch(68% 0.042 80.8)
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 #8A99B3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.008
- Bluey Grey #89A0B0 ΔE 0.022
- Bluegrey #85A3B2 ΔE 0.029
- Greyblue #77A1B5 ΔE 0.030
- Cool Grey #95A3A6 ΔE 0.042
- Silver Lake Blue #778DA9 ΔE 0.045
- Cool Steel #97A7B3 ΔE 0.045
- Blue Grey #758DA3 ΔE 0.049
Use #8A99B3 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.