#8C99BB
Closest named color: Cool Gray (#8D99AE). oklch(68.5% 0.052 268.6), rgb(140, 153, 187).
Aa
Black text reads best on this color (7.38:1).
About this color
#8C99BB is a medium-light, muted blue. In OKLCH its lightness is 68%, its chroma 0.052 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Gray (#8D99AE), ΔE 0.020 away. Black text reads best on it, at 7.38:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 7.38:1 |
| White text | 2.84:1 |
Values
| HEX | #8C99BB |
| RGB | rgb(140, 153, 187) |
| HSL | hsl(223, 26%, 64%) |
| OKLCH | oklch(68.5% 0.052 268.6) |
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 #8C99BB | 2.84:1 | Fails | Lc -59.8 | Large or bold text, headings |
| Black text on #8C99BB | 7.38:1 | AAA | Lc 49.5 | Large or bold text, headings |
| #8C99BB text on white | 2.84:1 | Fails | Lc 54.5 | Large or bold text, headings |
| #8C99BB text on black | 7.38:1 | AAA | Lc -47.3 | 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
#E7EAF0
oklch(93.6% 0.009 264.5)
-
Step 200
200
#D4D9E6
oklch(88.5% 0.019 269.1)
-
Step 300
300
#B8C0D7
oklch(80.9% 0.034 270.4)
-
Step 400
400 (this color)
#8C99BB
oklch(68.5% 0.052 268.6)
-
Step 500
500
#7888B3
oklch(63% 0.068 268.6)
-
Step 600
600
#61729F
oklch(55.7% 0.073 268.1)
-
Step 700
700
#515F88
oklch(49.1% 0.068 269.3)
-
Step 800
800
#424E6E
oklch(42.7% 0.056 268.2)
-
Step 900
900
#384159
oklch(37.8% 0.043 268.4)
-
Step 950
950
#212634
oklch(27% 0.027 269.3)
#8C99BB 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) | #8F9BBD | 0.007 |
| Deuteranopia (no green cones) | #8B97BA | 0.006 |
| Tritanopia (no blue cones) | #80A0A4 | 0.048 |
| Achromatopsia (no color) | #999999 | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #8C99BB
#8C99BB
oklch(68.5% 0.052 268.6)
- #A79875
#A79875
oklch(68.4% 0.052 87.5)
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 #8C99BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.020
- Bluey Grey #89A0B0 ΔE 0.030
- Bluegrey #85A3B2 ΔE 0.036
- Greyblue #77A1B5 ΔE 0.036
- Cool Steel #97A7B3 ΔE 0.048
- Silver Lake Blue #778DA9 ΔE 0.050
- Cool Grey #95A3A6 ΔE 0.050
- Blue Grey #758DA3 ΔE 0.056
Use #8C99BB 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.