#0184E0
Closest named color: Water Blue (#0E87CC). oklch(60.3% 0.168 249.5), rgb(1, 132, 224).
Aa
Black text reads best on this color (5.37:1).
About this color
#0184E0 is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.168 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.033 away. Black text reads best on it, at 5.37:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.168) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.37:1 |
| White text | 3.90:1 |
Values
| HEX | #0184E0 |
| RGB | rgb(1, 132, 224) |
| HSL | hsl(205, 99%, 44%) |
| OKLCH | oklch(60.3% 0.168 249.5) |
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 #0184E0 | 3.90:1 | AA large text | Lc -71.2 | Content text, not long reading |
| Black text on #0184E0 | 5.37:1 | AA | Lc 38.3 | Non-text elements, placeholder text |
| #0184E0 text on white | 3.90:1 | AA large text | Lc 65.7 | Content text, not long reading |
| #0184E0 text on black | 5.37:1 | AA | Lc -35.9 | 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
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DEECFA
oklch(93.7% 0.024 248.1)
-
Step 200
200
#C3DCF7
oklch(88.5% 0.046 250.4)
-
Step 300
300
#98C5F4
oklch(80.8% 0.082 250)
-
Step 400
400
#5AA6EF
oklch(70.8% 0.132 249.3)
-
Step 500
500 (this color)
#0184E0
oklch(60.3% 0.168 249.5)
-
Step 600
600
#0076C9
oklch(55.6% 0.155 249.4)
-
Step 700
700
#0063AA
oklch(49.1% 0.137 249.4)
-
Step 800
800
#00518D
oklch(42.7% 0.12 249.5)
-
Step 900
900
#004376
oklch(37.6% 0.105 249.5)
-
Step 950
950
#042847
oklch(27.1% 0.07 249.3)
#0184E0 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) | #558AE4 | 0.051 |
| Deuteranopia (no green cones) | #2F79DE | 0.030 |
| Tritanopia (no blue cones) | #009AA7 | 0.120 |
| Achromatopsia (no color) | #818181 | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0184E0
#0184E0
oklch(60.3% 0.168 249.5)
- #B27000
#B27000
oklch(60.2% 0.131 69.4)
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 #0184E0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.033
- Dark Sky Blue #448EE4 ΔE 0.044
- Clear Blue #247AFD ΔE 0.054
- Dodger Blue #1E90FF ΔE 0.055
- Windows Blue #3778BF ΔE 0.055
- Cerulean Blue #056EEE ΔE 0.063
- Chefchaouen Blue #4895EF ΔE 0.064
- Soft Blue #6488EA ΔE 0.067
Use #0184E0 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.