#607AB5
Closest named color: Steel Blue (#4682B4). oklch(58.5% 0.096 265.4), rgb(96, 122, 181).
Aa
Black text reads best on this color (4.94:1).
About this color
#607AB5 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 58%, its chroma 0.096 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Steel Blue (#4682B4), ΔE 0.034 away. Black text reads best on it, at 4.94:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.096) |
| Temperature | cool |
| Nearest name | Steel Blue (#4682B4) |
| Black text | 4.94:1 |
| White text | 4.24:1 |
Values
| HEX | #607AB5 |
| RGB | rgb(96, 122, 181) |
| HSL | hsl(222, 36%, 54%) |
| OKLCH | oklch(58.5% 0.096 265.4) |
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 #607AB5 | 4.24:1 | AA large text | Lc -74.7 | Content text, not long reading |
| Black text on #607AB5 | 4.94:1 | AA | Lc 34.9 | Non-text elements, placeholder text |
| #607AB5 text on white | 4.24:1 | AA large text | Lc 69.2 | Content text, not long reading |
| #607AB5 text on black | 4.94:1 | AA | Lc -32.4 | 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
#F3F5F9
oklch(97% 0.006 264.5)
-
Step 100
100
#E6EAF3
oklch(93.7% 0.013 266.7)
-
Step 200
200
#D1D9EA
oklch(88.4% 0.025 265.6)
-
Step 300
300
#B3C1DD
oklch(80.9% 0.043 264.3)
-
Step 400
400
#8CA0CD
oklch(70.7% 0.07 266)
-
Step 500
500
#7088C0
oklch(63.1% 0.089 266.1)
-
Step 600
600 (this color)
#607AB5
oklch(58.5% 0.096 265.4)
-
Step 700
700
#485F94
oklch(49.1% 0.09 265.4)
-
Step 800
800
#3B4E78
oklch(42.8% 0.074 264.9)
-
Step 900
900
#334160
oklch(37.7% 0.057 265.2)
-
Step 950
950
#1E2638
oklch(27% 0.036 265.6)
#607AB5 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) | #647FB7 | 0.015 |
| Deuteranopia (no green cones) | #5B77B4 | 0.011 |
| Tritanopia (no blue cones) | #3F868F | 0.086 |
| Achromatopsia (no color) | #7B7B7B | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #607AB5
#607AB5
oklch(58.5% 0.096 265.4)
- #957730
#957730
oklch(58.4% 0.096 85.9)
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 #607AB5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel Blue #4682B4 ΔE 0.034
- Cool Blue #4984B8 ΔE 0.034
- Off Blue #5684AE ΔE 0.034
- Dusty Blue #5A86AD ΔE 0.040
- Windows Blue #3778BF ΔE 0.045
- Stormy Blue #507B9C ΔE 0.046
- Dull Blue #49759C ΔE 0.050
- Flat Blue #3C73A8 ΔE 0.051
Use #607AB5 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.