#4789FB
Closest named color: Dodger Blue (#1E90FF). oklch(64.5% 0.183 260.5), rgb(71, 137, 251).
Aa
Black text reads best on this color (6.23:1).
About this color
#4789FB is a medium-light, vivid blue. In OKLCH its lightness is 65%, its chroma 0.183 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Dodger Blue (#1E90FF), ΔE 0.026 away. Black text reads best on it, at 6.23:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.183) |
| Temperature | cool |
| Nearest name | Dodger Blue (#1E90FF) |
| Black text | 6.23:1 |
| White text | 3.36:1 |
Values
| HEX | #4789FB |
| RGB | rgb(71, 137, 251) |
| HSL | hsl(218, 96%, 63%) |
| OKLCH | oklch(64.5% 0.183 260.5) |
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 #4789FB | 3.36:1 | AA large text | Lc -66.2 | Content text, not long reading |
| Black text on #4789FB | 6.23:1 | AA | Lc 43.4 | Non-text elements, placeholder text |
| #4789FB text on white | 3.36:1 | AA large text | Lc 60.7 | Content text, not long reading |
| #4789FB text on black | 6.23:1 | AA | Lc -41.0 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EBFC
oklch(93.7% 0.026 259)
-
Step 200
200
#C7DAFB
oklch(88.5% 0.05 261.5)
-
Step 300
300
#A0C2FB
oklch(81% 0.089 260.6)
-
Step 400
400
#6BA0F9
oklch(70.8% 0.143 260.3)
-
Step 500
500 (this color)
#4789FB
oklch(64.5% 0.183 260.5)
-
Step 600
600
#236BE5
oklch(55.7% 0.199 260.5)
-
Step 700
700
#1558C7
oklch(49.1% 0.185 260.5)
-
Step 800
800
#1549A1
oklch(42.8% 0.153 260.5)
-
Step 900
900
#183E80
oklch(37.7% 0.12 260.6)
-
Step 950
950
#0F254B
oklch(27% 0.076 260.5)
#4789FB 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) | #4E95FF | 0.033 |
| Deuteranopia (no green cones) | #2584F9 | 0.028 |
| Tritanopia (no blue cones) | #00A4B6 | 0.145 |
| Achromatopsia (no color) | #8C8C8C | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4789FB
#4789FB
oklch(64.5% 0.183 260.5)
- #B78300
#B78300
oklch(64.5% 0.133 80.5)
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 #4789FB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dodger Blue #1E90FF ΔE 0.026
- Soft Blue #6488EA ΔE 0.036
- Chefchaouen Blue #4895EF ΔE 0.039
- Dark Sky Blue #448EE4 ΔE 0.039
- Cornflower #6A79F7 ΔE 0.048
- Clear Blue #247AFD ΔE 0.049
- Cornflower Blue #6495ED ΔE 0.051
- Lavender Blue #8B88F8 ΔE 0.077
Use #4789FB 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.