#478FFF
Closest named color: Dodger Blue (#1E90FF). oklch(66% 0.182 259), rgb(71, 143, 255).
Aa
Black text reads best on this color (6.64:1).
About this color
#478FFF is a medium-light, vivid blue. In OKLCH its lightness is 66%, its chroma 0.182 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Dodger Blue (#1E90FF), ΔE 0.022 away. Black text reads best on it, at 6.64:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.182) |
| Temperature | cool |
| Nearest name | Dodger Blue (#1E90FF) |
| Black text | 6.64:1 |
| White text | 3.16:1 |
Values
| HEX | #478FFF |
| RGB | rgb(71, 143, 255) |
| HSL | hsl(217, 100%, 64%) |
| OKLCH | oklch(66% 0.182 259) |
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 #478FFF | 3.16:1 | AA large text | Lc -63.7 | Content text, not long reading |
| Black text on #478FFF | 6.64:1 | AA | Lc 45.7 | Large or bold text, headings |
| #478FFF text on white | 3.16:1 | AA large text | Lc 58.3 | Large or bold text, headings |
| #478FFF text on black | 6.64:1 | AA | Lc -43.4 | 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
#C6DBFA
oklch(88.6% 0.048 258)
-
Step 300
300
#9EC2FA
oklch(80.8% 0.089 259.1)
-
Step 400
400
#68A0F8
oklch(70.6% 0.143 259.1)
-
Step 500
500 (this color)
#478FFF
oklch(66% 0.182 259)
-
Step 600
600
#196CE4
oklch(55.6% 0.198 259.1)
-
Step 700
700
#0A59C6
oklch(49% 0.184 259.2)
-
Step 800
800
#0E4AA0
oklch(42.8% 0.152 259)
-
Step 900
900
#153F7F
oklch(37.8% 0.118 259)
-
Step 950
950
#0D254A
oklch(26.9% 0.075 258.9)
#478FFF 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) | #569AFF | 0.033 |
| Deuteranopia (no green cones) | #3289FD | 0.023 |
| Tritanopia (no blue cones) | #00A9BB | 0.141 |
| Achromatopsia (no color) | #919191 | 0.182 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #478FFF
#478FFF
oklch(66% 0.182 259)
- #BF8600
#BF8600
oklch(66% 0.137 78.6)
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 #478FFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dodger Blue #1E90FF ΔE 0.022
- Chefchaouen Blue #4895EF ΔE 0.031
- Soft Blue #6488EA ΔE 0.040
- Dark Sky Blue #448EE4 ΔE 0.041
- Cornflower Blue #6495ED ΔE 0.043
- Cornflower #6A79F7 ΔE 0.059
- Clear Blue #247AFD ΔE 0.062
- Lavender Blue #8B88F8 ΔE 0.075
Use #478FFF 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.