#0184BA
Closest named color: Blue NCS (#118AB2). oklch(58% 0.125 236.2), rgb(1, 132, 186).
Aa
Black text reads best on this color (5.01:1).
About this color
#0184BA is a medium-dark, moderately saturated blue. In OKLCH its lightness is 58%, its chroma 0.125 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.025 away. Black text reads best on it, at 5.01:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 5.01:1 |
| White text | 4.19:1 |
Values
| HEX | #0184BA |
| RGB | rgb(1, 132, 186) |
| HSL | hsl(198, 99%, 37%) |
| OKLCH | oklch(58% 0.125 236.2) |
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 #0184BA | 4.19:1 | AA large text | Lc -73.8 | Content text, not long reading |
| Black text on #0184BA | 5.01:1 | AA | Lc 35.8 | Non-text elements, placeholder text |
| #0184BA text on white | 4.19:1 | AA large text | Lc 68.3 | Content text, not long reading |
| #0184BA text on black | 5.01:1 | AA | Lc -33.4 | 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 600.
-
Step 50
50
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF3
oklch(93.6% 0.016 233)
-
Step 200
200
#C6DDEB
oklch(88.5% 0.031 234.5)
-
Step 300
300
#9EC7E1
oklch(80.9% 0.057 236.2)
-
Step 400
400
#66A9D1
oklch(70.6% 0.09 236.2)
-
Step 500
500
#3493C6
oklch(63.1% 0.116 236.6)
-
Step 600
600 (this color)
#0184BA
oklch(58% 0.125 236.2)
-
Step 700
700
#006894
oklch(49% 0.106 236.4)
-
Step 800
800
#00557A
oklch(42.5% 0.092 236.4)
-
Step 900
900
#0C4764
oklch(37.7% 0.075 236.2)
-
Step 950
950
#0B2A3A
oklch(27.1% 0.047 234.9)
#0184BA 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) | #6984BC | 0.071 |
| Deuteranopia (no green cones) | #5375B9 | 0.058 |
| Tritanopia (no blue cones) | #009297 | 0.078 |
| Achromatopsia (no color) | #7C7C7C | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0184BA
#0184BA
oklch(58% 0.125 236.2)
- #B16423
#B16423
oklch(58% 0.125 56.1)
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 #0184BA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.025
- Water Blue #0E87CC ΔE 0.028
- Nice Blue #107AB0 ΔE 0.030
- Steel Blue #4682B4 ΔE 0.033
- Cool Blue #4984B8 ΔE 0.036
- Windows Blue #3778BF ΔE 0.040
- Teal Blue #01889F ΔE 0.047
- Off Blue #5684AE ΔE 0.050
Use #0184BA 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.