#5185D2
Closest named color: Dark Sky Blue (#448EE4). oklch(61.6% 0.13 258.1), rgb(81, 133, 210).
Aa
Black text reads best on this color (5.63:1).
About this color
#5185D2 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.130 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.033 away. Black text reads best on it, at 5.63:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.130) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.63:1 |
| White text | 3.72:1 |
Values
| HEX | #5185D2 |
| RGB | rgb(81, 133, 210) |
| HSL | hsl(216, 59%, 57%) |
| OKLCH | oklch(61.6% 0.13 258.1) |
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 #5185D2 | 3.72:1 | AA large text | Lc -70.1 | Content text, not long reading |
| Black text on #5185D2 | 5.63:1 | AA | Lc 39.5 | Non-text elements, placeholder text |
| #5185D2 text on white | 3.72:1 | AA large text | Lc 64.6 | Content text, not long reading |
| #5185D2 text on black | 5.63:1 | AA | Lc -37.1 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF6
oklch(93.7% 0.018 253.3)
-
Step 200
200
#CBDAF1
oklch(88.4% 0.036 258.9)
-
Step 300
300
#A8C2EA
oklch(80.8% 0.064 258.9)
-
Step 400
400
#79A2E0
oklch(70.7% 0.102 258.5)
-
Step 500
500 (this color)
#5185D2
oklch(61.6% 0.13 258.1)
-
Step 600
600
#3A72C4
oklch(55.6% 0.141 258)
-
Step 700
700
#2C5FAA
oklch(49.1% 0.132 258.2)
-
Step 800
800
#264E89
oklch(42.7% 0.108 258.2)
-
Step 900
900
#23416E
oklch(37.6% 0.085 258.3)
-
Step 950
950
#152740
oklch(27.1% 0.053 256.9)
#5185D2 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) | #648BD5 | 0.028 |
| Deuteranopia (no green cones) | #527FD0 | 0.016 |
| Tritanopia (no blue cones) | #0096A1 | 0.109 |
| Achromatopsia (no color) | #848484 | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5185D2
#5185D2
oklch(61.6% 0.13 258.1)
- #AF7900
#AF7900
oklch(61.6% 0.129 77.5)
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 #5185D2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.033
- Water Blue #0E87CC ΔE 0.041
- Cool Blue #4984B8 ΔE 0.041
- Soft Blue #6488EA ΔE 0.043
- Steel Blue #4682B4 ΔE 0.048
- Faded Blue #658CBB ΔE 0.049
- Windows Blue #3778BF ΔE 0.052
- Chefchaouen Blue #4895EF ΔE 0.054
Use #5185D2 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.