#607399
Closest named color: Dull Blue (#49759C). oklch(55.5% 0.064 263.8), rgb(96, 115, 153).
Aa
White text reads best on this color (4.76:1).
About this color
#607399 is a medium-dark, muted blue. In OKLCH its lightness is 56%, its chroma 0.064 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Dull Blue (#49759C), ΔE 0.027 away. White text reads best on it, at 4.76:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Dull Blue (#49759C) |
| Black text | 4.40:1 |
| White text | 4.76:1 |
Values
| HEX | #607399 |
| RGB | rgb(96, 115, 153) |
| HSL | hsl(220, 23%, 49%) |
| OKLCH | oklch(55.5% 0.064 263.8) |
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 #607399 | 4.76:1 | AA | Lc -78.5 | Fine for body text |
| Black text on #607399 | 4.40:1 | AA large text | Lc 31.1 | Non-text elements, placeholder text |
| #607399 text on white | 4.76:1 | AA | Lc 73.0 | Content text, not long reading |
| #607399 text on black | 4.40:1 | AA large text | Lc -28.7 | Dividers and decoration only |
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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E7EAF0
oklch(93.6% 0.009 264.5)
-
Step 200
200
#D4D9E4
oklch(88.5% 0.016 266.3)
-
Step 300
300
#B7C1D4
oklch(80.9% 0.029 263.4)
-
Step 400
400
#92A1BE
oklch(70.7% 0.046 263.6)
-
Step 500
500
#778AAE
oklch(63.2% 0.059 263)
-
Step 600
600 (this color)
#607399
oklch(55.5% 0.064 263.8)
-
Step 700
700
#4F6183
oklch(49.2% 0.059 262.8)
-
Step 800
800
#414F6A
oklch(42.7% 0.049 263.2)
-
Step 900
900
#374256
oklch(37.8% 0.037 262.2)
-
Step 950
950
#202633
oklch(26.9% 0.026 265.4)
#607399 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) | #66769B | 0.013 |
| Deuteranopia (no green cones) | #607098 | 0.008 |
| Tritanopia (no blue cones) | #4E7B80 | 0.057 |
| Achromatopsia (no color) | #737373 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #607399
#607399
oklch(55.5% 0.064 263.8)
- #857047
#857047
oklch(55.5% 0.063 83.4)
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 #607399, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Blue #49759C ΔE 0.027
- Stormy Blue #507B9C ΔE 0.027
- Metallic Blue #4F738E ΔE 0.029
- Cerulean #457B9D ΔE 0.035
- Grey Blue #647D8E ΔE 0.039
- Muted Blue #3B719F ΔE 0.044
- Flat Blue #3C73A8 ΔE 0.045
- Battleship Gray #6C757D ΔE 0.048
Use #607399 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.