#8599C8
Closest named color: Cool Gray (#8D99AE). oklch(68.5% 0.073 266.6), rgb(133, 153, 200).
Aa
Black text reads best on this color (7.38:1).
About this color
#8599C8 is a medium-light, moderately saturated blue. In OKLCH its lightness is 68%, its chroma 0.073 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Gray (#8D99AE), ΔE 0.040 away. Black text reads best on it, at 7.38:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 7.38:1 |
| White text | 2.84:1 |
Values
| HEX | #8599C8 |
| RGB | rgb(133, 153, 200) |
| HSL | hsl(222, 38%, 65%) |
| OKLCH | oklch(68.5% 0.073 266.6) |
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 #8599C8 | 2.84:1 | Fails | Lc -59.8 | Large or bold text, headings |
| Black text on #8599C8 | 7.38:1 | AAA | Lc 49.6 | Large or bold text, headings |
| #8599C8 text on white | 2.84:1 | Fails | Lc 54.5 | Large or bold text, headings |
| #8599C8 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E6EAF3
oklch(93.7% 0.013 266.7)
-
Step 200
200
#D1D9EB
oklch(88.5% 0.026 266.6)
-
Step 300
300
#B3C0DF
oklch(80.8% 0.046 267.4)
-
Step 400
400 (this color)
#8599C8
oklch(68.5% 0.073 266.6)
-
Step 500
500
#6F88C3
oklch(63.2% 0.094 266.2)
-
Step 600
600
#5871AF
oklch(55.7% 0.101 266.5)
-
Step 700
700
#485E97
oklch(49.1% 0.096 266.9)
-
Step 800
800
#3B4D7A
oklch(42.7% 0.078 266.6)
-
Step 900
900
#334062
oklch(37.6% 0.061 267.5)
-
Step 950
950
#1E263A
oklch(27.1% 0.039 267.1)
#8599C8 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) | #8A9CCA | 0.011 |
| Deuteranopia (no green cones) | #8397C7 | 0.006 |
| Tritanopia (no blue cones) | #72A2A9 | 0.065 |
| Achromatopsia (no color) | #999999 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #8599C8
#8599C8
oklch(68.5% 0.073 266.6)
- #AE9764
#AE9764
oklch(68.5% 0.074 86.2)
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 #8599C8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.040
- Greyblue #77A1B5 ΔE 0.045
- Bluey Grey #89A0B0 ΔE 0.046
- Bluegrey #85A3B2 ΔE 0.050
- Silver Lake Blue #778DA9 ΔE 0.056
- Faded Blue #658CBB ΔE 0.058
- Cool Steel #97A7B3 ΔE 0.063
- Blue Grey #758DA3 ΔE 0.064
Use #8599C8 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.