#307AF7
Closest named color: Clear Blue (#247AFD). oklch(60.4% 0.201 260.3), rgb(48, 122, 247).
Aa
Black text reads best on this color (5.25:1).
About this color
#307AF7 is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.201 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Clear Blue (#247AFD), ΔE 0.011 away. Black text reads best on it, at 5.25:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.201) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 5.25:1 |
| White text | 3.99:1 |
Values
| HEX | #307AF7 |
| RGB | rgb(48, 122, 247) |
| HSL | hsl(218, 93%, 58%) |
| OKLCH | oklch(60.4% 0.201 260.3) |
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 #307AF7 | 3.99:1 | AA large text | Lc -72.2 | Content text, not long reading |
| Black text on #307AF7 | 5.25:1 | AA | Lc 37.4 | Non-text elements, placeholder text |
| #307AF7 text on white | 3.99:1 | AA large text | Lc 66.7 | Content text, not long reading |
| #307AF7 text on black | 5.25:1 | AA | Lc -34.9 | 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
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DFEBFE
oklch(93.7% 0.029 259.6)
-
Step 200
200
#C5DAFE
oklch(88.4% 0.055 261.2)
-
Step 300
300
#9DC2FF
oklch(81% 0.096 260.2)
-
Step 400
400
#669FFF
oklch(70.7% 0.154 260.3)
-
Step 500
500 (this color)
#307AF7
oklch(60.4% 0.201 260.3)
-
Step 600
600
#1168F0
oklch(55.6% 0.219 260.3)
-
Step 700
700
#0155D1
oklch(49.1% 0.204 260.4)
-
Step 800
800
#0847A9
oklch(42.8% 0.168 260.3)
-
Step 900
900
#113D86
oklch(37.8% 0.132 260.2)
-
Step 950
950
#0C244E
oklch(26.9% 0.083 260.7)
#307AF7 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) | #2589FB | 0.037 |
| Deuteranopia (no green cones) | #0077F5 | 0.021 |
| Tritanopia (no blue cones) | #0098AD | 0.154 |
| Achromatopsia (no color) | #7F7F7F | 0.201 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #307AF7
#307AF7
oklch(60.4% 0.201 260.3)
- #A87800
#A87800
oklch(60.5% 0.125 80.6)
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 #307AF7, closest first.
No curated palette has a color within ΔE 0.04 of #307AF7.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.011
- Cerulean Blue #056EEE ΔE 0.040
- Royal Blue #4169E1 ΔE 0.050
- Dodger Blue #1E90FF ΔE 0.055
- Cornflower #6A79F7 ΔE 0.056
- Bright Blue #0165FC ΔE 0.058
- Neon Blue #4361EE ΔE 0.059
- Dark Sky Blue #448EE4 ΔE 0.067
Use #307AF7 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.