#1F84F4
Closest named color: Clear Blue (#247AFD). oklch(61.9% 0.19 255.2), rgb(31, 132, 244).
Aa
Black text reads best on this color (5.66:1).
About this color
#1F84F4 is a medium-dark, vivid blue. In OKLCH its lightness is 62%, its chroma 0.190 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Clear Blue (#247AFD), ΔE 0.030 away. Black text reads best on it, at 5.66:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.190) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 5.66:1 |
| White text | 3.70:1 |
Values
| HEX | #1F84F4 |
| RGB | rgb(31, 132, 244) |
| HSL | hsl(212, 91%, 54%) |
| OKLCH | oklch(61.9% 0.19 255.2) |
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 #1F84F4 | 3.70:1 | AA large text | Lc -69.5 | Content text, not long reading |
| Black text on #1F84F4 | 5.66:1 | AA | Lc 40.1 | Non-text elements, placeholder text |
| #1F84F4 text on white | 3.70:1 | AA large text | Lc 64.0 | Content text, not long reading |
| #1F84F4 text on black | 5.66:1 | AA | Lc -37.7 | 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
#DEEBFC
oklch(93.5% 0.027 255.1)
-
Step 200
200
#C3DBFB
oklch(88.4% 0.051 255.7)
-
Step 300
300
#98C4FC
oklch(80.9% 0.093 254.7)
-
Step 400
400
#5CA2FB
oklch(70.6% 0.149 255.3)
-
Step 500
500 (this color)
#1F84F4
oklch(61.9% 0.19 255.2)
-
Step 600
600
#0070DB
oklch(55.5% 0.184 255.3)
-
Step 700
700
#005EBA
oklch(49.1% 0.163 255.3)
-
Step 800
800
#004D9A
oklch(42.7% 0.142 255.2)
-
Step 900
900
#014081
oklch(37.7% 0.124 255.1)
-
Step 950
950
#06264B
oklch(27% 0.078 254.9)
#1F84F4 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) | #458FF8 | 0.040 |
| Deuteranopia (no green cones) | #007CF2 | 0.024 |
| Tritanopia (no blue cones) | #009FB0 | 0.142 |
| Achromatopsia (no color) | #858585 | 0.190 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F84F4
#1F84F4
oklch(61.9% 0.19 255.2)
- #B37800
#B37800
oklch(61.8% 0.131 74.7)
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 #1F84F4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.030
- Dodger Blue #1E90FF ΔE 0.034
- Dark Sky Blue #448EE4 ΔE 0.046
- Chefchaouen Blue #4895EF ΔE 0.057
- Soft Blue #6488EA ΔE 0.058
- Cerulean Blue #056EEE ΔE 0.059
- Water Blue #0E87CC ΔE 0.064
- Cornflower #6A79F7 ΔE 0.064
Use #1F84F4 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.