#658199
Closest named color: Grey Blue (#647D8E). oklch(59% 0.049 244.6), rgb(101, 129, 153).
Aa
Black text reads best on this color (5.15:1).
About this color
#658199 is a medium-dark, muted blue. In OKLCH its lightness is 59%, its chroma 0.049 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Blue (#647D8E), ΔE 0.018 away. Black text reads best on it, at 5.15:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Grey Blue (#647D8E) |
| Black text | 5.15:1 |
| White text | 4.07:1 |
Values
| HEX | #658199 |
| RGB | rgb(101, 129, 153) |
| HSL | hsl(208, 20%, 50%) |
| OKLCH | oklch(59% 0.049 244.6) |
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 #658199 | 4.07:1 | AA large text | Lc -73.4 | Content text, not long reading |
| Black text on #658199 | 5.15:1 | AA | Lc 36.2 | Non-text elements, placeholder text |
| #658199 text on white | 4.07:1 | AA large text | Lc 67.9 | Content text, not long reading |
| #658199 text on black | 5.15:1 | AA | Lc -33.7 | 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 600.
-
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
#B5C2CE
oklch(80.8% 0.022 245.9)
-
Step 400
400
#8FA3B6
oklch(70.6% 0.036 247)
-
Step 500
500
#738DA3
oklch(63.1% 0.045 244.1)
-
Step 600
600 (this color)
#658199
oklch(59% 0.049 244.6)
-
Step 700
700
#4B6479
oklch(49.2% 0.045 244.2)
-
Step 800
800
#3E5163
oklch(42.6% 0.038 247.4)
-
Step 900
900
#354350
oklch(37.6% 0.029 246.7)
-
Step 950
950
#1F282F
oklch(27.1% 0.018 241.7)
#658199 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) | #77819A | 0.024 |
| Deuteranopia (no green cones) | #717B99 | 0.022 |
| Tritanopia (no blue cones) | #548789 | 0.041 |
| Achromatopsia (no color) | #7E7E7E | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #658199
#658199
oklch(59% 0.049 244.6)
- #92785F
#92785F
oklch(59.1% 0.049 65.5)
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 #658199, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Blue #647D8E ΔE 0.018
- Slate Gray #708090 ΔE 0.018
- Steel #738595 ΔE 0.024
- Steel Grey #6F828A ΔE 0.027
- Battleship Grey #6B7C85 ΔE 0.030
- Dusty Blue #5A86AD ΔE 0.031
- Light Slate Gray #778899 ΔE 0.033
- Stormy Blue #507B9C ΔE 0.033
Use #658199 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.