#107AEF
Closest named color: Clear Blue (#247AFD). oklch(59.2% 0.197 256.2), rgb(16, 122, 239).
Aa
Black text reads best on this color (5.05:1).
About this color
#107AEF is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.197 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Clear Blue (#247AFD), ΔE 0.023 away. Black text reads best on it, at 5.05:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.197) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 5.05:1 |
| White text | 4.15:1 |
Values
| HEX | #107AEF |
| RGB | rgb(16, 122, 239) |
| HSL | hsl(211, 87%, 50%) |
| OKLCH | oklch(59.2% 0.197 256.2) |
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 #107AEF | 4.15:1 | AA large text | Lc -73.4 | Content text, not long reading |
| Black text on #107AEF | 5.05:1 | AA | Lc 36.2 | Non-text elements, placeholder text |
| #107AEF text on white | 4.15:1 | AA large text | Lc 67.9 | Content text, not long reading |
| #107AEF text on black | 5.05:1 | AA | Lc -33.8 | 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 600.
-
Step 50
50
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DFEBFB
oklch(93.6% 0.025 255.6)
-
Step 200
200
#C5DBFA
oklch(88.5% 0.049 256.9)
-
Step 300
300
#9BC3FA
oklch(80.8% 0.089 256.5)
-
Step 400
400
#62A2F7
oklch(70.7% 0.142 256.1)
-
Step 500
500
#3288F4
oklch(63.2% 0.181 256.2)
-
Step 600
600 (this color)
#107AEF
oklch(59.2% 0.197 256.2)
-
Step 700
700
#005DBD
oklch(49.1% 0.169 256.1)
-
Step 800
800
#004C9D
oklch(42.8% 0.147 256.2)
-
Step 900
900
#0C407E
oklch(37.7% 0.117 256.1)
-
Step 950
950
#0A264A
oklch(27% 0.075 256.3)
#107AEF 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) | #2F86F3 | 0.037 |
| Deuteranopia (no green cones) | #0074ED | 0.017 |
| Tritanopia (no blue cones) | #0097A9 | 0.148 |
| Achromatopsia (no color) | #7C7C7C | 0.197 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #107AEF
#107AEF
oklch(59.2% 0.197 256.2)
- #A77200
#A77200
oklch(59.2% 0.124 76.5)
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 #107AEF, closest first.
No curated palette has a color within ΔE 0.04 of #107AEF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.023
- Cerulean Blue #056EEE ΔE 0.031
- Royal Blue #4169E1 ΔE 0.048
- Bright Blue #0165FC ΔE 0.056
- Dodger Blue #1E90FF ΔE 0.061
- Neon Blue #4361EE ΔE 0.061
- Dark Sky Blue #448EE4 ΔE 0.068
- Water Blue #0E87CC ΔE 0.068
Use #107AEF 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.