#607FBA
Closest named color: Cool Blue (#4984B8). oklch(59.8% 0.097 262.6), rgb(96, 127, 186).
Aa
Black text reads best on this color (5.24:1).
About this color
#607FBA is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.097 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.027 away. Black text reads best on it, at 5.24:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 5.24:1 |
| White text | 4.00:1 |
Values
| HEX | #607FBA |
| RGB | rgb(96, 127, 186) |
| HSL | hsl(219, 39%, 55%) |
| OKLCH | oklch(59.8% 0.097 262.6) |
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 #607FBA | 4.00:1 | AA large text | Lc -72.8 | Content text, not long reading |
| Black text on #607FBA | 5.24:1 | AA | Lc 36.8 | Non-text elements, placeholder text |
| #607FBA text on white | 4.00:1 | AA large text | Lc 67.3 | Content text, not long reading |
| #607FBA text on black | 5.24:1 | AA | Lc -34.4 | 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 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
#B0C1E0
oklch(80.8% 0.048 262.5)
-
Step 400
400
#87A1D1
oklch(70.7% 0.077 262.4)
-
Step 500
500 (this color)
#607FBA
oklch(59.8% 0.097 262.6)
-
Step 600
600
#5172B1
oklch(55.6% 0.106 262.5)
-
Step 700
700
#425F98
oklch(49% 0.098 262.8)
-
Step 800
800
#364E7C
oklch(42.7% 0.082 262.5)
-
Step 900
900
#2F4163
oklch(37.6% 0.063 262.4)
-
Step 950
950
#1C263A
oklch(26.9% 0.04 263.6)
#607FBA 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) | #6984BD | 0.019 |
| Deuteranopia (no green cones) | #5F7BB9 | 0.011 |
| Tritanopia (no blue cones) | #3A8C94 | 0.088 |
| Achromatopsia (no color) | #7F7F7F | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #607FBA
#607FBA
oklch(59.8% 0.097 262.6)
- #9C7A34
#9C7A34
oklch(59.9% 0.097 82.9)
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 #607FBA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.027
- Off Blue #5684AE ΔE 0.029
- Steel Blue #4682B4 ΔE 0.031
- Dusty Blue #5A86AD ΔE 0.033
- Faded Blue #658CBB ΔE 0.038
- Windows Blue #3778BF ΔE 0.049
- Stormy Blue #507B9C ΔE 0.052
- Cerulean #457B9D ΔE 0.057
Use #607FBA 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.