#648297
Closest named color: Grey Blue (#647D8E). oklch(59.1% 0.047 239.1), rgb(100, 130, 151).
Aa
Black text reads best on this color (5.18:1).
About this color
#648297 is a medium-dark, muted blue. In OKLCH its lightness is 59%, its chroma 0.047 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Blue (#647D8E), ΔE 0.017 away. Black text reads best on it, at 5.18:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Grey Blue (#647D8E) |
| Black text | 5.18:1 |
| White text | 4.05:1 |
Values
| HEX | #648297 |
| RGB | rgb(100, 130, 151) |
| HSL | hsl(205, 20%, 49%) |
| OKLCH | oklch(59.1% 0.047 239.1) |
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 #648297 | 4.05:1 | AA large text | Lc -73.2 | Content text, not long reading |
| Black text on #648297 | 5.18:1 | AA | Lc 36.3 | Non-text elements, placeholder text |
| #648297 text on white | 4.05:1 | AA large text | Lc 67.7 | Content text, not long reading |
| #648297 text on black | 5.18:1 | AA | Lc -33.9 | 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
#E6EAED
oklch(93.5% 0.006 239.8)
-
Step 200
200
#D2DAE0
oklch(88.4% 0.012 239.9)
-
Step 300
300
#B5C3CD
oklch(80.9% 0.021 238.7)
-
Step 400
400
#8EA4B4
oklch(70.7% 0.034 239.6)
-
Step 500
500
#728EA1
oklch(63.2% 0.043 238)
-
Step 600
600 (this color)
#648297
oklch(59.1% 0.047 239.1)
-
Step 700
700
#4A6477
oklch(49% 0.043 240.5)
-
Step 800
800
#3D5261
oklch(42.7% 0.036 239.7)
-
Step 900
900
#34444F
oklch(37.7% 0.028 238.5)
-
Step 950
950
#1F282E
oklch(27.1% 0.017 237.4)
#648297 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) | #798198 | 0.028 |
| Deuteranopia (no green cones) | #727C97 | 0.024 |
| Tritanopia (no blue cones) | #538789 | 0.036 |
| Achromatopsia (no color) | #7E7E7E | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #648297
#648297
oklch(59.1% 0.047 239.1)
- #937762
#937762
oklch(59% 0.047 58.6)
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 #648297, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Blue #647D8E ΔE 0.017
- Slate Gray #708090 ΔE 0.017
- Steel #738595 ΔE 0.023
- Steel Grey #6F828A ΔE 0.023
- Battleship Grey #6B7C85 ΔE 0.028
- Light Slate Gray #778899 ΔE 0.032
- Dusty Blue #5A86AD ΔE 0.033
- Stormy Blue #507B9C ΔE 0.035
Use #648297 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.