#66869B
Closest named color: Steel (#738595). oklch(60.3% 0.048 237.4), rgb(102, 134, 155).
Aa
Black text reads best on this color (5.44:1).
About this color
#66869B is a medium-dark, muted blue. In OKLCH its lightness is 60%, its chroma 0.048 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Steel (#738595), ΔE 0.018 away. Black text reads best on it, at 5.44:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | Steel (#738595) |
| Black text | 5.44:1 |
| White text | 3.85:1 |
Values
| HEX | #66869B |
| RGB | rgb(102, 134, 155) |
| HSL | hsl(204, 21%, 50%) |
| OKLCH | oklch(60.3% 0.048 237.4) |
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 #66869B | 3.85:1 | AA large text | Lc -71.5 | Content text, not long reading |
| Black text on #66869B | 5.44:1 | AA | Lc 38.1 | Non-text elements, placeholder text |
| #66869B text on white | 3.85:1 | AA large text | Lc 66.0 | Content text, not long reading |
| #66869B text on black | 5.44:1 | AA | Lc -35.7 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E6EBEE
oklch(93.7% 0.007 233.6)
-
Step 200
200
#D1DBE1
oklch(88.6% 0.014 233.8)
-
Step 300
300
#B3C3CE
oklch(80.8% 0.023 237.7)
-
Step 400
400
#8BA5B6
oklch(70.8% 0.038 236.8)
-
Step 500
500 (this color)
#66869B
oklch(60.3% 0.048 237.4)
-
Step 600
600
#56788F
oklch(55.6% 0.053 238.5)
-
Step 700
700
#466579
oklch(49.1% 0.048 237.4)
-
Step 800
800
#3A5363
oklch(42.9% 0.04 237)
-
Step 900
900
#324450
oklch(37.6% 0.031 237.8)
-
Step 950
950
#1D282F
oklch(27% 0.02 236.4)
#66869B 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) | #7D859C | 0.030 |
| Deuteranopia (no green cones) | #757F9B | 0.027 |
| Tritanopia (no blue cones) | #558B8D | 0.036 |
| Achromatopsia (no color) | #828282 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66869B
#66869B
oklch(60.3% 0.048 237.4)
- #987A65
#987A65
oklch(60.3% 0.048 56.6)
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 #66869B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel #738595 ΔE 0.018
- Slate Gray #708090 ΔE 0.022
- Light Slate Gray #778899 ΔE 0.023
- Steel Grey #6F828A ΔE 0.026
- Grey Blue #647D8E ΔE 0.029
- Dusty Blue #5A86AD ΔE 0.030
- Blue Grey #758DA3 ΔE 0.030
- Lavender Gray #7E7F9A ΔE 0.036
Use #66869B 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.