#1784EA
Closest named color: Clear Blue (#247AFD). oklch(61.1% 0.178 252.8), rgb(23, 132, 234).
Aa
Black text reads best on this color (5.52:1).
About this color
#1784EA is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.178 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Clear Blue (#247AFD), ΔE 0.040 away. Black text reads best on it, at 5.52:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.178) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 5.52:1 |
| White text | 3.80:1 |
Values
| HEX | #1784EA |
| RGB | rgb(23, 132, 234) |
| HSL | hsl(209, 83%, 50%) |
| OKLCH | oklch(61.1% 0.178 252.8) |
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 #1784EA | 3.80:1 | AA large text | Lc -70.4 | Content text, not long reading |
| Black text on #1784EA | 5.52:1 | AA | Lc 39.2 | Non-text elements, placeholder text |
| #1784EA text on white | 3.80:1 | AA large text | Lc 64.9 | Content text, not long reading |
| #1784EA text on black | 5.52:1 | AA | Lc -36.8 | 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
#DEEBFB
oklch(93.5% 0.026 253.6)
-
Step 200
200
#C3DCF9
oklch(88.5% 0.048 252.2)
-
Step 300
300
#98C4F8
oklch(80.8% 0.088 253)
-
Step 400
400
#5CA4F5
oklch(70.7% 0.14 252.8)
-
Step 500
500 (this color)
#1784EA
oklch(61.1% 0.178 252.8)
-
Step 600
600
#0073D3
oklch(55.6% 0.171 252.9)
-
Step 700
700
#0061B2
oklch(49.2% 0.149 252.5)
-
Step 800
800
#004F94
oklch(42.8% 0.131 252.8)
-
Step 900
900
#00417C
oklch(37.6% 0.116 253)
-
Step 950
950
#062749
oklch(27.1% 0.073 252.8)
#1784EA 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) | #4E8CEE | 0.043 |
| Deuteranopia (no green cones) | #207BE8 | 0.023 |
| Tritanopia (no blue cones) | #009DAB | 0.133 |
| Achromatopsia (no color) | #838383 | 0.178 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1784EA
#1784EA
oklch(61.1% 0.178 252.8)
- #B27500
#B27500
oklch(61.1% 0.13 73)
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 #1784EA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.040
- Dark Sky Blue #448EE4 ΔE 0.042
- Dodger Blue #1E90FF ΔE 0.043
- Water Blue #0E87CC ΔE 0.048
- Chefchaouen Blue #4895EF ΔE 0.058
- Cerulean Blue #056EEE ΔE 0.059
- Soft Blue #6488EA ΔE 0.059
- Windows Blue #3778BF ΔE 0.068
Use #1784EA 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.