#607EB8
Closest named color: Cool Blue (#4984B8). oklch(59.5% 0.096 262.9), rgb(96, 126, 184).
Aa
Black text reads best on this color (5.17:1).
About this color
#607EB8 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.096 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.028 away. Black text reads best on it, at 5.17:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.096) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 5.17:1 |
| White text | 4.05:1 |
Values
| HEX | #607EB8 |
| RGB | rgb(96, 126, 184) |
| HSL | hsl(220, 38%, 55%) |
| OKLCH | oklch(59.5% 0.096 262.9) |
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 #607EB8 | 4.05:1 | AA large text | Lc -73.2 | Content text, not long reading |
| Black text on #607EB8 | 5.17:1 | AA | Lc 36.4 | Non-text elements, placeholder text |
| #607EB8 text on white | 4.05:1 | AA large text | Lc 67.7 | Content text, not long reading |
| #607EB8 text on black | 5.17:1 | 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 500.
-
Step 50
50
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF3
oklch(93.6% 0.013 262.4)
-
Step 200
200
#D0DAEB
oklch(88.6% 0.026 261.1)
-
Step 300
300
#B1C1E0
oklch(80.9% 0.047 263.7)
-
Step 400
400
#88A1D0
oklch(70.7% 0.075 262.8)
-
Step 500
500 (this color)
#607EB8
oklch(59.5% 0.096 262.9)
-
Step 600
600
#5272B0
oklch(55.6% 0.104 262.7)
-
Step 700
700
#435F98
oklch(49.1% 0.098 263.4)
-
Step 800
800
#374E7B
oklch(42.7% 0.08 262.9)
-
Step 900
900
#304163
oklch(37.7% 0.063 263.4)
-
Step 950
950
#1C263A
oklch(26.9% 0.04 263.6)
#607EB8 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) | #6882BA | 0.016 |
| Deuteranopia (no green cones) | #5F7AB7 | 0.011 |
| Tritanopia (no blue cones) | #3C8A93 | 0.085 |
| Achromatopsia (no color) | #7E7E7E | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #607EB8
#607EB8
oklch(59.5% 0.096 262.9)
- #9A7934
#9A7934
oklch(59.4% 0.096 83.3)
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 #607EB8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.028
- Off Blue #5684AE ΔE 0.028
- Steel Blue #4682B4 ΔE 0.030
- Dusty Blue #5A86AD ΔE 0.032
- Faded Blue #658CBB ΔE 0.040
- Windows Blue #3778BF ΔE 0.049
- Stormy Blue #507B9C ΔE 0.049
- Cerulean #457B9D ΔE 0.054
Use #607EB8 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.