#5183F2
Closest named color: Soft Blue (#6488EA). oklch(63.1% 0.175 263.9), rgb(81, 131, 242).
Aa
Black text reads best on this color (5.87:1).
About this color
#5183F2 is a medium-light, vivid blue. In OKLCH its lightness is 63%, its chroma 0.175 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.029 away. Black text reads best on it, at 5.87:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.175) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 5.87:1 |
| White text | 3.57:1 |
Values
| HEX | #5183F2 |
| RGB | rgb(81, 131, 242) |
| HSL | hsl(221, 86%, 63%) |
| OKLCH | oklch(63.1% 0.175 263.9) |
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 #5183F2 | 3.57:1 | AA large text | Lc -68.5 | Content text, not long reading |
| Black text on #5183F2 | 5.87:1 | AA | Lc 41.1 | Non-text elements, placeholder text |
| #5183F2 text on white | 3.57:1 | AA large text | Lc 63.0 | Content text, not long reading |
| #5183F2 text on black | 5.87:1 | AA | Lc -38.7 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EAFB
oklch(93.5% 0.025 263.3)
-
Step 200
200
#C9DAFA
oklch(88.6% 0.048 263.1)
-
Step 300
300
#A4C1F9
oklch(81% 0.086 263.3)
-
Step 400
400
#749EF6
oklch(70.7% 0.137 263.9)
-
Step 500
500 (this color)
#5183F2
oklch(63.1% 0.175 263.9)
-
Step 600
600
#3769E1
oklch(55.6% 0.191 264.1)
-
Step 700
700
#2A57C3
oklch(49.1% 0.176 263.9)
-
Step 800
800
#23489E
oklch(42.8% 0.147 263.8)
-
Step 900
900
#213D7D
oklch(37.6% 0.114 264)
-
Step 950
950
#142449
oklch(26.9% 0.072 264.5)
#5183F2 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) | #4B8FF6 | 0.030 |
| Deuteranopia (no green cones) | #2A81F0 | 0.031 |
| Tritanopia (no blue cones) | #009DAF | 0.143 |
| Achromatopsia (no color) | #878787 | 0.175 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5183F2
#5183F2
oklch(63.1% 0.175 263.9)
- #AE8100
#AE8100
oklch(63% 0.129 83.9)
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 #5183F2, closest first.
No curated palette has a color within ΔE 0.04 of #5183F2.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.029
- Cornflower #6A79F7 ΔE 0.036
- Dark Sky Blue #448EE4 ΔE 0.039
- Dodger Blue #1E90FF ΔE 0.043
- Clear Blue #247AFD ΔE 0.047
- Chefchaouen Blue #4895EF ΔE 0.048
- Cornflower Blue #6495ED ΔE 0.055
- Royal Blue #4169E1 ΔE 0.073
Use #5183F2 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.