#478EB0
Closest named color: Dusty Blue (#5A86AD). oklch(61.5% 0.088 231.4), rgb(71, 142, 176).
Aa
Black text reads best on this color (5.76:1).
About this color
#478EB0 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 61%, its chroma 0.088 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Blue (#5A86AD), ΔE 0.026 away. Black text reads best on it, at 5.76:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Dusty Blue (#5A86AD) |
| Black text | 5.76:1 |
| White text | 3.64:1 |
Values
| HEX | #478EB0 |
| RGB | rgb(71, 142, 176) |
| HSL | hsl(199, 43%, 48%) |
| OKLCH | oklch(61.5% 0.088 231.4) |
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 #478EB0 | 3.64:1 | AA large text | Lc -69.3 | Content text, not long reading |
| Black text on #478EB0 | 5.76:1 | AA | Lc 40.2 | Non-text elements, placeholder text |
| #478EB0 text on white | 3.64:1 | AA large text | Lc 63.8 | Content text, not long reading |
| #478EB0 text on black | 5.76:1 | AA | Lc -37.8 | 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 500.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2ECF1
oklch(93.7% 0.013 228.9)
-
Step 200
200
#CADCE6
oklch(88.4% 0.024 231.9)
-
Step 300
300
#A6C6D8
oklch(80.9% 0.043 232.7)
-
Step 400
400
#74A9C4
oklch(70.8% 0.068 231.1)
-
Step 500
500 (this color)
#478EB0
oklch(61.5% 0.088 231.4)
-
Step 600
600
#2B7DA1
oklch(55.7% 0.095 231.2)
-
Step 700
700
#1C698A
oklch(49.1% 0.089 231.6)
-
Step 800
800
#1A5670
oklch(42.8% 0.074 231)
-
Step 900
900
#1D475B
oklch(37.8% 0.058 231.8)
-
Step 950
950
#122A35
oklch(27.1% 0.036 229.8)
#478EB0 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) | #7D8CB2 | 0.060 |
| Deuteranopia (no green cones) | #6E81B0 | 0.052 |
| Tritanopia (no blue cones) | #009799 | 0.060 |
| Achromatopsia (no color) | #868686 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #478EB0
#478EB0
oklch(61.5% 0.088 231.4)
- #AF7552
#AF7552
oklch(61.5% 0.088 51.6)
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 #478EB0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Blue #5A86AD ΔE 0.026
- Off Blue #5684AE ΔE 0.030
- Blue NCS #118AB2 ΔE 0.034
- Cool Blue #4984B8 ΔE 0.035
- Faded Blue #658CBB ΔE 0.037
- Steel Blue #4682B4 ΔE 0.037
- Teal Blue #01889F ΔE 0.048
- Blue Grey #758DA3 ΔE 0.051
Use #478EB0 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.