#66849E
Closest named color: Steel (#738595). oklch(60% 0.053 245), rgb(102, 132, 158).
Aa
Black text reads best on this color (5.35:1).
About this color
#66849E is a medium-dark, muted blue. In OKLCH its lightness is 60%, its chroma 0.053 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Steel (#738595), ΔE 0.022 away. Black text reads best on it, at 5.35:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Steel (#738595) |
| Black text | 5.35:1 |
| White text | 3.91:1 |
Values
| HEX | #66849E |
| RGB | rgb(102, 132, 158) |
| HSL | hsl(208, 22%, 51%) |
| OKLCH | oklch(60% 0.053 245) |
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 #66849E | 3.91:1 | AA large text | Lc -72.1 | Content text, not long reading |
| Black text on #66849E | 5.35:1 | AA | Lc 37.5 | Non-text elements, placeholder text |
| #66849E text on white | 3.91:1 | AA large text | Lc 66.6 | Content text, not long reading |
| #66849E text on black | 5.35:1 | AA | Lc -35.1 | 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
#F4F6F8
oklch(97.2% 0.003 247.9)
-
Step 100
100
#E6EAEF
oklch(93.5% 0.008 253.9)
-
Step 200
200
#D2DAE2
oklch(88.5% 0.014 248)
-
Step 300
300
#B3C3D0
oklch(80.9% 0.025 242.4)
-
Step 400
400
#8CA4B9
oklch(70.7% 0.041 244.8)
-
Step 500
500 (this color)
#66849E
oklch(60% 0.053 245)
-
Step 600
600
#577793
oklch(55.6% 0.057 245.5)
-
Step 700
700
#47647D
oklch(49.1% 0.053 245.2)
-
Step 800
800
#3A5266
oklch(42.7% 0.044 244.2)
-
Step 900
900
#324453
oklch(37.8% 0.035 244)
-
Step 950
950
#1E2830
oklch(27.1% 0.02 242.7)
#66849E 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) | #7A849F | 0.027 |
| Deuteranopia (no green cones) | #727E9E | 0.022 |
| Tritanopia (no blue cones) | #548A8C | 0.044 |
| Achromatopsia (no color) | #818181 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66849E
#66849E
oklch(60% 0.053 245)
- #977A5F
#977A5F
oklch(60% 0.053 64.5)
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 #66849E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel #738595 ΔE 0.022
- Slate Gray #708090 ΔE 0.023
- Dusty Blue #5A86AD ΔE 0.025
- Light Slate Gray #778899 ΔE 0.028
- Grey Blue #647D8E ΔE 0.028
- Off Blue #5684AE ΔE 0.030
- Steel Grey #6F828A ΔE 0.031
- Lavender Gray #7E7F9A ΔE 0.033
Use #66849E 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.