#8399BD
Closest named color: Cool Gray (#8D99AE). oklch(67.9% 0.059 260.2), rgb(131, 153, 189).
Aa
Black text reads best on this color (7.25:1).
About this color
#8399BD is a medium-light, muted blue. In OKLCH its lightness is 68%, its chroma 0.059 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Gray (#8D99AE), ΔE 0.025 away. Black text reads best on it, at 7.25:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 7.25:1 |
| White text | 2.89:1 |
Values
| HEX | #8399BD |
| RGB | rgb(131, 153, 189) |
| HSL | hsl(217, 31%, 63%) |
| OKLCH | oklch(67.9% 0.059 260.2) |
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 #8399BD | 2.89:1 | Fails | Lc -60.5 | Content text, not long reading |
| Black text on #8399BD | 7.25:1 | AAA | Lc 48.8 | Large or bold text, headings |
| #8399BD text on white | 2.89:1 | Fails | Lc 55.2 | Large or bold text, headings |
| #8399BD text on black | 7.25:1 | 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
#F3F5F9
oklch(97% 0.006 264.5)
-
Step 100
100
#E6EAF1
oklch(93.6% 0.01 261.8)
-
Step 200
200
#D1DAE7
oklch(88.5% 0.02 257.5)
-
Step 300
300
#B3C2D9
oklch(81% 0.036 258.9)
-
Step 400
400 (this color)
#8399BD
oklch(67.9% 0.059 260.2)
-
Step 500
500
#6F8AB8
oklch(63.1% 0.076 260.9)
-
Step 600
600
#5774A4
oklch(55.7% 0.082 260.2)
-
Step 700
700
#47618C
oklch(49.1% 0.076 260.1)
-
Step 800
800
#3A4F72
oklch(42.6% 0.064 260.3)
-
Step 900
900
#32425C
oklch(37.7% 0.049 259.9)
-
Step 950
950
#1E2736
oklch(27.1% 0.031 260.5)
#8399BD 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) | #8D9BBF | 0.015 |
| Deuteranopia (no green cones) | #8795BC | 0.011 |
| Tritanopia (no blue cones) | #72A0A5 | 0.052 |
| Achromatopsia (no color) | #989898 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #8399BD
#8399BD
oklch(67.9% 0.059 260.2)
- #AB946E
#AB946E
oklch(67.8% 0.059 80)
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 #8399BD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.025
- Greyblue #77A1B5 ΔE 0.032
- Bluey Grey #89A0B0 ΔE 0.033
- Bluegrey #85A3B2 ΔE 0.037
- Silver Lake Blue #778DA9 ΔE 0.044
- Blue Grey #758DA3 ΔE 0.051
- Cool Steel #97A7B3 ΔE 0.055
- Faded Blue #658CBB ΔE 0.055
Use #8399BD 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.