#5184DF
Closest named color: Dark Sky Blue (#448EE4). oklch(62.1% 0.149 261.1), rgb(81, 132, 223).
Aa
Black text reads best on this color (5.71:1).
About this color
#5184DF is a medium-light, vivid blue. In OKLCH its lightness is 62%, its chroma 0.149 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.027 away. Black text reads best on it, at 5.71:1.
| Hue family | Blues |
| Lightness | medium-light (62%) |
| Chroma | vivid (0.149) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.71:1 |
| White text | 3.67:1 |
Values
| HEX | #5184DF |
| RGB | rgb(81, 132, 223) |
| HSL | hsl(218, 69%, 60%) |
| OKLCH | oklch(62.1% 0.149 261.1) |
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 #5184DF | 3.67:1 | AA large text | Lc -69.6 | Content text, not long reading |
| Black text on #5184DF | 5.71:1 | AA | Lc 40.0 | Non-text elements, placeholder text |
| #5184DF text on white | 3.67:1 | AA large text | Lc 64.1 | Content text, not long reading |
| #5184DF text on black | 5.71:1 | AA | Lc -37.6 | 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
#CADAF5
oklch(88.5% 0.041 260.9)
-
Step 300
300
#A6C2F0
oklch(80.9% 0.072 260.3)
-
Step 400
400
#77A0E9
oklch(70.6% 0.117 261.4)
-
Step 500
500 (this color)
#5184DF
oklch(62.1% 0.149 261.1)
-
Step 600
600
#396FD0
oklch(55.7% 0.161 261)
-
Step 700
700
#2B5CB4
oklch(49.1% 0.15 261)
-
Step 800
800
#254C92
oklch(42.8% 0.124 261)
-
Step 900
900
#224074
oklch(37.7% 0.096 260.6)
-
Step 950
950
#152644
oklch(27.1% 0.061 261)
#5184DF 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) | #5B8CE3 | 0.025 |
| Deuteranopia (no green cones) | #467FDD | 0.018 |
| Tritanopia (no blue cones) | #0099A7 | 0.123 |
| Achromatopsia (no color) | #858585 | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5184DF
#5184DF
oklch(62.1% 0.149 261.1)
- #AE7D00
#AE7D00
oklch(62.2% 0.129 81)
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 #5184DF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.027
- Soft Blue #6488EA ΔE 0.029
- Chefchaouen Blue #4895EF ΔE 0.047
- Water Blue #0E87CC ΔE 0.052
- Cornflower Blue #6495ED ΔE 0.054
- Cornflower #6A79F7 ΔE 0.055
- Dodger Blue #1E90FF ΔE 0.057
- Cool Blue #4984B8 ΔE 0.062
Use #5184DF 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.