#5F80BB
Closest named color: Cool Blue (#4984B8). oklch(60% 0.098 261.5), rgb(95, 128, 187).
Aa
Black text reads best on this color (5.29:1).
About this color
#5F80BB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.098 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.026 away. Black text reads best on it, at 5.29:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 5.29:1 |
| White text | 3.96:1 |
Values
| HEX | #5F80BB |
| RGB | rgb(95, 128, 187) |
| HSL | hsl(218, 40%, 55%) |
| OKLCH | oklch(60% 0.098 261.5) |
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 #5F80BB | 3.96:1 | AA large text | Lc -72.4 | Content text, not long reading |
| Black text on #5F80BB | 5.29:1 | AA | Lc 37.1 | Non-text elements, placeholder text |
| #5F80BB text on white | 3.96:1 | AA large text | Lc 66.9 | Content text, not long reading |
| #5F80BB text on black | 5.29:1 | AA | Lc -34.7 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E5EAF3
oklch(93.6% 0.013 262.4)
-
Step 200
200
#CFDAEB
oklch(88.5% 0.026 259)
-
Step 300
300
#B0C1E0
oklch(80.8% 0.048 262.5)
-
Step 400
400
#86A1D1
oklch(70.6% 0.077 261.7)
-
Step 500
500 (this color)
#5F80BB
oklch(60% 0.098 261.5)
-
Step 600
600
#4F72B2
oklch(55.5% 0.108 261.7)
-
Step 700
700
#406099
oklch(49.2% 0.099 261.2)
-
Step 800
800
#354E7C
oklch(42.6% 0.083 261.8)
-
Step 900
900
#2E4164
oklch(37.6% 0.065 262)
-
Step 950
950
#1B263A
oklch(26.9% 0.041 261.9)
#5F80BB 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) | #6A84BE | 0.019 |
| Deuteranopia (no green cones) | #5F7CBA | 0.011 |
| Tritanopia (no blue cones) | #378D95 | 0.088 |
| Achromatopsia (no color) | #808080 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F80BB
#5F80BB
oklch(60% 0.098 261.5)
- #9E7A34
#9E7A34
oklch(60.1% 0.098 81.5)
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 #5F80BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.026
- Off Blue #5684AE ΔE 0.028
- Steel Blue #4682B4 ΔE 0.030
- Dusty Blue #5A86AD ΔE 0.032
- Faded Blue #658CBB ΔE 0.036
- Windows Blue #3778BF ΔE 0.050
- Stormy Blue #507B9C ΔE 0.053
- Water Blue #0E87CC ΔE 0.057
Use #5F80BB 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.