#8A99B1
Closest named color: Cool Gray (#8D99AE). oklch(67.9% 0.039 259.8), rgb(138, 153, 177).
Aa
Black text reads best on this color (7.27:1).
About this color
#8A99B1 is a medium-light, muted blue. In OKLCH its lightness is 68%, its chroma 0.039 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Gray (#8D99AE), ΔE 0.006 away. Black text reads best on it, at 7.27:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 7.27:1 |
| White text | 2.88:1 |
Values
| HEX | #8A99B1 |
| RGB | rgb(138, 153, 177) |
| HSL | hsl(217, 20%, 62%) |
| OKLCH | oklch(67.9% 0.039 259.8) |
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 #8A99B1 | 2.88:1 | Fails | Lc -60.5 | Content text, not long reading |
| Black text on #8A99B1 | 7.27:1 | AAA | Lc 48.9 | Large or bold text, headings |
| #8A99B1 text on white | 2.88:1 | Fails | Lc 55.2 | Large or bold text, headings |
| #8A99B1 text on black | 7.27:1 | AAA | Lc -46.6 | 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
#D4D9E2
oklch(88.4% 0.013 262.4)
-
Step 300
300
#B7C1D1
oklch(80.8% 0.025 259.8)
-
Step 400
400 (this color)
#8A99B1
oklch(67.9% 0.039 259.8)
-
Step 500
500
#788AA9
oklch(63% 0.051 261.2)
-
Step 600
600
#607494
oklch(55.5% 0.055 259.7)
-
Step 700
700
#50617E
oklch(49% 0.051 261)
-
Step 800
800
#415066
oklch(42.8% 0.041 257.9)
-
Step 900
900
#374253
oklch(37.6% 0.033 259)
-
Step 950
950
#202731
oklch(27% 0.021 257.3)
#8A99B1 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) | #919AB2 | 0.010 |
| Deuteranopia (no green cones) | #8D96B0 | 0.009 |
| Tritanopia (no blue cones) | #809EA1 | 0.035 |
| Achromatopsia (no color) | #989898 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #8A99B1
#8A99B1
oklch(67.9% 0.039 259.8)
- #A5967D
#A5967D
oklch(68% 0.04 80.5)
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 #8A99B1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.006
- Bluey Grey #89A0B0 ΔE 0.020
- Bluegrey #85A3B2 ΔE 0.028
- Greyblue #77A1B5 ΔE 0.029
- Cool Grey #95A3A6 ΔE 0.040
- Cool Steel #97A7B3 ΔE 0.044
- Silver Lake Blue #778DA9 ΔE 0.044
- Blue Grey #758DA3 ΔE 0.048
Use #8A99B1 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.