#1684FB
Closest named color: Clear Blue (#247AFD). oklch(62.3% 0.2 255.5), rgb(22, 132, 251).
Aa
Black text reads best on this color (5.72:1).
About this color
#1684FB is a medium-light, vivid blue. In OKLCH its lightness is 62%, its chroma 0.200 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Clear Blue (#247AFD), ΔE 0.025 away. Black text reads best on it, at 5.72:1.
| Hue family | Blues |
| Lightness | medium-light (62%) |
| Chroma | vivid (0.200) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 5.72:1 |
| White text | 3.66:1 |
Values
| HEX | #1684FB |
| RGB | rgb(22, 132, 251) |
| HSL | hsl(211, 97%, 54%) |
| OKLCH | oklch(62.3% 0.2 255.5) |
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 #1684FB | 3.66:1 | AA large text | Lc -69.0 | Content text, not long reading |
| Black text on #1684FB | 5.72:1 | AA | Lc 40.5 | Non-text elements, placeholder text |
| #1684FB text on white | 3.66:1 | AA large text | Lc 63.5 | Content text, not long reading |
| #1684FB text on black | 5.72:1 | AA | Lc -38.1 | 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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DEEBFD
oklch(93.6% 0.028 256.5)
-
Step 200
200
#C2DBFD
oklch(88.4% 0.054 256.1)
-
Step 300
300
#96C4FF
oklch(81% 0.097 254.9)
-
Step 400
400
#59A2FF
oklch(70.7% 0.155 255.4)
-
Step 500
500 (this color)
#1684FB
oklch(62.3% 0.2 255.5)
-
Step 600
600
#0070DD
oklch(55.6% 0.187 255.6)
-
Step 700
700
#005EBB
oklch(49.1% 0.165 255.5)
-
Step 800
800
#004D9B
oklch(42.8% 0.143 255.4)
-
Step 900
900
#003F82
oklch(37.6% 0.127 255.7)
-
Step 950
950
#04264D
oklch(27% 0.082 254.9)
#1684FB 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) | #3D90FF | 0.040 |
| Deuteranopia (no green cones) | #007CF9 | 0.022 |
| Tritanopia (no blue cones) | #00A1B3 | 0.150 |
| Achromatopsia (no color) | #858585 | 0.200 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1684FB
#1684FB
oklch(62.3% 0.2 255.5)
- #B47A00
#B47A00
oklch(62.4% 0.131 75.7)
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 #1684FB, closest first.
No curated palette has a color within ΔE 0.04 of #1684FB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.025
- Dodger Blue #1E90FF ΔE 0.032
- Dark Sky Blue #448EE4 ΔE 0.054
- Cerulean Blue #056EEE ΔE 0.059
- Chefchaouen Blue #4895EF ΔE 0.061
- Soft Blue #6488EA ΔE 0.063
- Cornflower #6A79F7 ΔE 0.065
- Royal Blue #4169E1 ΔE 0.074
Use #1684FB 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.