#1D84DF
Closest named color: Water Blue (#0E87CC). oklch(60.5% 0.164 251), rgb(29, 132, 223).
Aa
Black text reads best on this color (5.41:1).
About this color
#1D84DF is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.164 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.032 away. Black text reads best on it, at 5.41:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.164) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.41:1 |
| White text | 3.87:1 |
Values
| HEX | #1D84DF |
| RGB | rgb(29, 132, 223) |
| HSL | hsl(208, 77%, 49%) |
| OKLCH | oklch(60.5% 0.164 251) |
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 #1D84DF | 3.87:1 | AA large text | Lc -71.2 | Content text, not long reading |
| Black text on #1D84DF | 5.41:1 | AA | Lc 38.4 | Non-text elements, placeholder text |
| #1D84DF text on white | 3.87:1 | AA large text | Lc 65.7 | Content text, not long reading |
| #1D84DF text on black | 5.41:1 | AA | Lc -36.0 | 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
#DFEBF9
oklch(93.5% 0.023 252.2)
-
Step 200
200
#C4DCF6
oklch(88.5% 0.044 250.4)
-
Step 300
300
#9AC5F3
oklch(80.9% 0.08 250.5)
-
Step 400
400
#5FA5EE
oklch(70.7% 0.129 251)
-
Step 500
500 (this color)
#1D84DF
oklch(60.5% 0.164 251)
-
Step 600
600
#0075CD
oklch(55.6% 0.161 250.9)
-
Step 700
700
#0062AE
oklch(49.1% 0.143 251.1)
-
Step 800
800
#005090
oklch(42.7% 0.125 251.1)
-
Step 900
900
#044378
oklch(37.8% 0.107 251)
-
Step 950
950
#072746
oklch(26.9% 0.068 251.4)
#1D84DF 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) | #568AE3 | 0.046 |
| Deuteranopia (no green cones) | #347ADD | 0.027 |
| Tritanopia (no blue cones) | #009AA6 | 0.121 |
| Achromatopsia (no color) | #818181 | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D84DF
#1D84DF
oklch(60.5% 0.164 251)
- #B27200
#B27200
oklch(60.6% 0.131 70.8)
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 #1D84DF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.032
- Dark Sky Blue #448EE4 ΔE 0.039
- Windows Blue #3778BF ΔE 0.053
- Dodger Blue #1E90FF ΔE 0.054
- Clear Blue #247AFD ΔE 0.055
- Chefchaouen Blue #4895EF ΔE 0.060
- Soft Blue #6488EA ΔE 0.061
- Cool Blue #4984B8 ΔE 0.064
Use #1D84DF 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.