#9399BB
Closest named color: Cool Gray (#8D99AE). oklch(69% 0.05 277.1), rgb(147, 153, 187).
Aa
Black text reads best on this color (7.51:1).
About this color
#9399BB is a medium-light, muted blue. In OKLCH its lightness is 69%, its chroma 0.050 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Gray (#8D99AE), ΔE 0.022 away. Black text reads best on it, at 7.51:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 7.51:1 |
| White text | 2.79:1 |
Values
| HEX | #9399BB |
| RGB | rgb(147, 153, 187) |
| HSL | hsl(231, 23%, 65%) |
| OKLCH | oklch(69% 0.05 277.1) |
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 #9399BB | 2.79:1 | Fails | Lc -59.1 | Large or bold text, headings |
| Black text on #9399BB | 7.51:1 | AAA | Lc 50.2 | Large or bold text, headings |
| #9399BB text on white | 2.79:1 | Fails | Lc 53.8 | Large or bold text, headings |
| #9399BB text on black | 7.51:1 | AAA | Lc -48.0 | 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
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#E8E9F0
oklch(93.5% 0.009 279.7)
-
Step 200
200
#D6D8E5
oklch(88.5% 0.018 279)
-
Step 300
300
#BBBFD5
oklch(80.8% 0.031 277.5)
-
Step 400
400 (this color)
#9399BB
oklch(69% 0.05 277.1)
-
Step 500
500
#7F86B1
oklch(63% 0.065 277.2)
-
Step 600
600
#69709C
oklch(55.7% 0.069 276.9)
-
Step 700
700
#575D86
oklch(49% 0.066 277.3)
-
Step 800
800
#474C6D
oklch(42.6% 0.055 277.2)
-
Step 900
900
#3C4058
oklch(37.8% 0.041 276.9)
-
Step 950
950
#232534
oklch(26.9% 0.028 278.4)
#9399BB 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) | #909CBD | 0.008 |
| Deuteranopia (no green cones) | #8D99BA | 0.008 |
| Tritanopia (no blue cones) | #8A9FA4 | 0.045 |
| Achromatopsia (no color) | #9B9B9B | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #9399BB
#9399BB
oklch(69% 0.05 277.1)
- #A49C78
#A49C78
oklch(69% 0.051 97)
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 #9399BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.022
- Bluey Grey #89A0B0 ΔE 0.032
- Bluegrey #85A3B2 ΔE 0.038
- Greyblue #77A1B5 ΔE 0.043
- Cool Steel #97A7B3 ΔE 0.045
- Cool Grey #95A3A6 ΔE 0.048
- Heather #A484AC ΔE 0.057
- Silver Lake Blue #778DA9 ΔE 0.057
Use #9399BB 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.