#5B8BE7
Closest named color: Soft Blue (#6488EA). oklch(64.6% 0.148 262.2), rgb(91, 139, 231).
Aa
Black text reads best on this color (6.29:1).
About this color
#5B8BE7 is a medium-light, vivid blue. In OKLCH its lightness is 65%, its chroma 0.148 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.013 away. Black text reads best on it, at 6.29:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.148) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 6.29:1 |
| White text | 3.33:1 |
Values
| HEX | #5B8BE7 |
| RGB | rgb(91, 139, 231) |
| HSL | hsl(219, 74%, 63%) |
| OKLCH | oklch(64.6% 0.148 262.2) |
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 #5B8BE7 | 3.33:1 | AA large text | Lc -66.0 | Content text, not long reading |
| Black text on #5B8BE7 | 6.29:1 | AA | Lc 43.5 | Non-text elements, placeholder text |
| #5B8BE7 text on white | 3.33:1 | AA large text | Lc 60.6 | Content text, not long reading |
| #5B8BE7 text on black | 6.29:1 | AA | Lc -41.1 | 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EAF8
oklch(93.5% 0.021 261.8)
-
Step 200
200
#CBDAF4
oklch(88.5% 0.039 261.5)
-
Step 300
300
#A8C1F0
oklch(80.9% 0.072 262.9)
-
Step 400
400
#79A0E9
oklch(70.7% 0.116 262.3)
-
Step 500
500 (this color)
#5B8BE7
oklch(64.6% 0.148 262.2)
-
Step 600
600
#3C6ED0
oklch(55.6% 0.161 262.2)
-
Step 700
700
#2F5BB4
oklch(49% 0.15 262.5)
-
Step 800
800
#274B92
oklch(42.7% 0.124 262.2)
-
Step 900
900
#243F74
oklch(37.6% 0.097 262.4)
-
Step 950
950
#162544
oklch(26.9% 0.061 263.4)
#5B8BE7 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) | #6394EB | 0.027 |
| Deuteranopia (no green cones) | #4F87E5 | 0.017 |
| Tritanopia (no blue cones) | #00A0AE | 0.126 |
| Achromatopsia (no color) | #8D8D8D | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B8BE7
#5B8BE7
oklch(64.6% 0.148 262.2)
- #B68400
#B68400
oklch(64.6% 0.133 81.7)
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 #5B8BE7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.013
- Dark Sky Blue #448EE4 ΔE 0.022
- Chefchaouen Blue #4895EF ΔE 0.029
- Cornflower Blue #6495ED ΔE 0.030
- Dodger Blue #1E90FF ΔE 0.050
- Cornflower #6A79F7 ΔE 0.056
- Perrywinkle #8F8CE7 ΔE 0.065
- Lavender Blue #8B88F8 ΔE 0.066
Use #5B8BE7 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.