#478BCE
Closest named color: Dark Sky Blue (#448EE4). oklch(62.3% 0.123 250.1), rgb(71, 139, 206).
Aa
Black text reads best on this color (5.85:1).
About this color
#478BCE is a medium-light, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.123 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.033 away. Black text reads best on it, at 5.85:1.
| Hue family | Blues |
| Lightness | medium-light (62%) |
| Chroma | moderately saturated (0.123) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.85:1 |
| White text | 3.58:1 |
Values
| HEX | #478BCE |
| RGB | rgb(71, 139, 206) |
| HSL | hsl(210, 58%, 54%) |
| OKLCH | oklch(62.3% 0.123 250.1) |
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 #478BCE | 3.58:1 | AA large text | Lc -68.7 | Content text, not long reading |
| Black text on #478BCE | 5.85:1 | AA | Lc 40.8 | Non-text elements, placeholder text |
| #478BCE text on white | 3.58:1 | AA large text | Lc 63.2 | Content text, not long reading |
| #478BCE text on black | 5.85:1 | AA | Lc -38.5 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C9DBEF
oklch(88.4% 0.034 251)
-
Step 300
300
#A4C4E7
oklch(80.9% 0.061 250.9)
-
Step 400
400
#71A5DB
oklch(70.7% 0.097 250.2)
-
Step 500
500 (this color)
#478BCE
oklch(62.3% 0.123 250.1)
-
Step 600
600
#2976BE
oklch(55.5% 0.134 250.5)
-
Step 700
700
#1A63A4
oklch(49.1% 0.125 250.3)
-
Step 800
800
#195185
oklch(42.7% 0.104 250.4)
-
Step 900
900
#1C446A
oklch(37.8% 0.079 249.7)
-
Step 950
950
#11283E
oklch(27% 0.05 249.3)
#478BCE 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) | #6E8ED1 | 0.043 |
| Deuteranopia (no green cones) | #5B81CD | 0.031 |
| Tritanopia (no blue cones) | #009BA3 | 0.096 |
| Achromatopsia (no color) | #878787 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #478BCE
#478BCE
oklch(62.3% 0.123 250.1)
- #B57821
#B57821
oklch(62.2% 0.123 70.3)
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 #478BCE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.033
- Water Blue #0E87CC ΔE 0.034
- Cool Blue #4984B8 ΔE 0.035
- Faded Blue #658CBB ΔE 0.041
- Steel Blue #4682B4 ΔE 0.043
- Off Blue #5684AE ΔE 0.049
- Dusty Blue #5A86AD ΔE 0.050
- Chefchaouen Blue #4895EF ΔE 0.052
Use #478BCE 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.