#478ECB
Closest named color: Faded Blue (#658CBB). oklch(62.8% 0.117 246.9), rgb(71, 142, 203).
Aa
Black text reads best on this color (5.99:1).
About this color
#478ECB is a medium-light, moderately saturated blue. In OKLCH its lightness is 63%, its chroma 0.117 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.035 away. Black text reads best on it, at 5.99:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 5.99:1 |
| White text | 3.50:1 |
Values
| HEX | #478ECB |
| RGB | rgb(71, 142, 203) |
| HSL | hsl(208, 56%, 54%) |
| OKLCH | oklch(62.8% 0.117 246.9) |
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 #478ECB | 3.50:1 | AA large text | Lc -67.8 | Content text, not long reading |
| Black text on #478ECB | 5.99:1 | AA | Lc 41.7 | Non-text elements, placeholder text |
| #478ECB text on white | 3.50:1 | AA large text | Lc 62.3 | Content text, not long reading |
| #478ECB text on black | 5.99:1 | AA | Lc -39.4 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C9DCED
oklch(88.6% 0.031 245.1)
-
Step 300
300
#A3C5E4
oklch(80.9% 0.057 246.1)
-
Step 400
400
#71A6D7
oklch(70.7% 0.091 247.3)
-
Step 500
500 (this color)
#478ECB
oklch(62.8% 0.117 246.9)
-
Step 600
600
#2578B9
oklch(55.6% 0.127 246.9)
-
Step 700
700
#17659F
oklch(49.2% 0.117 246.6)
-
Step 800
800
#175281
oklch(42.6% 0.098 247.2)
-
Step 900
900
#1B4468
oklch(37.6% 0.077 248)
-
Step 950
950
#11283D
oklch(26.9% 0.049 248.1)
#478ECB 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) | #7390CE | 0.047 |
| Deuteranopia (no green cones) | #6183CA | 0.036 |
| Tritanopia (no blue cones) | #009DA4 | 0.089 |
| Achromatopsia (no color) | #898989 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #478ECB
#478ECB
oklch(62.8% 0.117 246.9)
- #B7792F
#B7792F
oklch(62.8% 0.117 67.1)
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 #478ECB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.035
- Cool Blue #4984B8 ΔE 0.036
- Dark Sky Blue #448EE4 ΔE 0.038
- Water Blue #0E87CC ΔE 0.039
- Steel Blue #4682B4 ΔE 0.044
- Off Blue #5684AE ΔE 0.046
- Dusty Blue #5A86AD ΔE 0.047
- Blue NCS #118AB2 ΔE 0.052
Use #478ECB 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.