#5189DE
Closest named color: Dark Sky Blue (#448EE4). oklch(63.1% 0.142 258.5), rgb(81, 137, 222).
Aa
Black text reads best on this color (5.98:1).
About this color
#5189DE is a medium-light, vivid blue. In OKLCH its lightness is 63%, its chroma 0.142 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.016 away. Black text reads best on it, at 5.98:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.142) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.98:1 |
| White text | 3.50:1 |
Values
| HEX | #5189DE |
| RGB | rgb(81, 137, 222) |
| HSL | hsl(216, 68%, 59%) |
| OKLCH | oklch(63.1% 0.142 258.5) |
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 #5189DE | 3.50:1 | AA large text | Lc -67.9 | Content text, not long reading |
| Black text on #5189DE | 5.98:1 | AA | Lc 41.6 | Non-text elements, placeholder text |
| #5189DE text on white | 3.50:1 | AA large text | Lc 62.4 | Content text, not long reading |
| #5189DE text on black | 5.98:1 | AA | Lc -39.3 | 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
#E2EBF8
oklch(93.7% 0.02 257.5)
-
Step 200
200
#CADAF3
oklch(88.4% 0.039 259.3)
-
Step 300
300
#A6C2EE
oklch(80.9% 0.07 259.3)
-
Step 400
400
#75A2E5
oklch(70.7% 0.11 258.1)
-
Step 500
500 (this color)
#5189DE
oklch(63.1% 0.142 258.5)
-
Step 600
600
#3471CC
oklch(55.6% 0.155 258.5)
-
Step 700
700
#275EB0
oklch(49.1% 0.143 258.6)
-
Step 800
800
#224D8F
oklch(42.7% 0.119 258.9)
-
Step 900
900
#204172
oklch(37.7% 0.093 258.2)
-
Step 950
950
#142643
oklch(27% 0.059 259.5)
#5189DE 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) | #6490E1 | 0.029 |
| Deuteranopia (no green cones) | #4F83DC | 0.016 |
| Tritanopia (no blue cones) | #009CA9 | 0.116 |
| Achromatopsia (no color) | #898989 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5189DE
#5189DE
oklch(63.1% 0.142 258.5)
- #B47E00
#B47E00
oklch(63.1% 0.131 78.5)
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 #5189DE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.016
- Soft Blue #6488EA ΔE 0.028
- Chefchaouen Blue #4895EF ΔE 0.036
- Cornflower Blue #6495ED ΔE 0.044
- Water Blue #0E87CC ΔE 0.051
- Dodger Blue #1E90FF ΔE 0.055
- Faded Blue #658CBB ΔE 0.059
- Cool Blue #4984B8 ΔE 0.059
Use #5189DE 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.