#8CA0B3
Closest named color: Bluey Grey (#89A0B0). oklch(69.7% 0.036 247), rgb(140, 160, 179).
Aa
Black text reads best on this color (7.79:1).
About this color
#8CA0B3 is a medium-light, muted blue. In OKLCH its lightness is 70%, its chroma 0.036 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Bluey Grey (#89A0B0), ΔE 0.006 away. Black text reads best on it, at 7.79:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | muted (0.036) |
| Temperature | cool |
| Nearest name | Bluey Grey (#89A0B0) |
| Black text | 7.79:1 |
| White text | 2.69:1 |
Values
| HEX | #8CA0B3 |
| RGB | rgb(140, 160, 179) |
| HSL | hsl(209, 20%, 63%) |
| OKLCH | oklch(69.7% 0.036 247) |
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 #8CA0B3 | 2.69:1 | Fails | Lc -57.5 | Large or bold text, headings |
| Black text on #8CA0B3 | 7.79:1 | AAA | Lc 51.7 | Large or bold text, headings |
| #8CA0B3 text on white | 2.69:1 | Fails | Lc 52.3 | Large or bold text, headings |
| #8CA0B3 text on black | 7.79:1 | AAA | Lc -49.6 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EAEE
oklch(93.5% 0.007 247.9)
-
Step 200
200
#D3DAE1
oklch(88.5% 0.012 248)
-
Step 300
300
#B5C2CF
oklch(80.8% 0.023 248.1)
-
Step 400
400 (this color)
#8CA0B3
oklch(69.7% 0.036 247)
-
Step 500
500
#738DA4
oklch(63.2% 0.046 245.3)
-
Step 600
600
#5C768F
oklch(55.5% 0.05 247.7)
-
Step 700
700
#4B637A
oklch(49% 0.047 247.7)
-
Step 800
800
#3E5163
oklch(42.6% 0.038 247.4)
-
Step 900
900
#354351
oklch(37.6% 0.03 248.6)
-
Step 950
950
#1F272F
oklch(26.9% 0.019 248.5)
#8CA0B3 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) | #99A0B4 | 0.018 |
| Deuteranopia (no green cones) | #949CB3 | 0.015 |
| Tritanopia (no blue cones) | #82A4A6 | 0.029 |
| Achromatopsia (no color) | #9E9E9E | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #8CA0B3
#8CA0B3
oklch(69.7% 0.036 247)
- #AD9A86
#AD9A86
oklch(69.7% 0.036 68.6)
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 #8CA0B3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluey Grey #89A0B0 ΔE 0.006
- Bluegrey #85A3B2 ΔE 0.012
- Cool Gray #8D99AE ΔE 0.019
- Greyblue #77A1B5 ΔE 0.025
- Cool Steel #97A7B3 ΔE 0.026
- Cool Grey #95A3A6 ΔE 0.026
- Pewter #96A8A1 ΔE 0.042
- Dark Gray #A9A9A9 ΔE 0.052
Use #8CA0B3 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.