#478AAB
Closest named color: Dusty Blue (#5A86AD). oklch(60.3% 0.085 231.9), rgb(71, 138, 171).
Aa
Black text reads best on this color (5.49:1).
About this color
#478AAB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.085 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Blue (#5A86AD), ΔE 0.022 away. Black text reads best on it, at 5.49:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Dusty Blue (#5A86AD) |
| Black text | 5.49:1 |
| White text | 3.82:1 |
Values
| HEX | #478AAB |
| RGB | rgb(71, 138, 171) |
| HSL | hsl(200, 41%, 47%) |
| OKLCH | oklch(60.3% 0.085 231.9) |
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 #478AAB | 3.82:1 | AA large text | Lc -71.1 | Content text, not long reading |
| Black text on #478AAB | 5.49:1 | AA | Lc 38.5 | Non-text elements, placeholder text |
| #478AAB text on white | 3.82:1 | AA large text | Lc 65.6 | Content text, not long reading |
| #478AAB text on black | 5.49:1 | AA | Lc -36.1 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2EBF1
oklch(93.5% 0.013 236.6)
-
Step 200
200
#CBDCE6
oklch(88.5% 0.023 233.4)
-
Step 300
300
#A7C6D7
oklch(80.9% 0.041 231.9)
-
Step 400
400
#76A8C3
oklch(70.6% 0.066 232.5)
-
Step 500
500 (this color)
#478AAB
oklch(60.3% 0.085 231.9)
-
Step 600
600
#307CA0
oklch(55.5% 0.092 232.5)
-
Step 700
700
#216989
oklch(49.2% 0.086 231.8)
-
Step 800
800
#1E556F
oklch(42.6% 0.071 232.5)
-
Step 900
900
#1F475A
oklch(37.8% 0.055 231.4)
-
Step 950
950
#132935
oklch(26.9% 0.036 234.1)
#478AAB 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) | #7A88AD | 0.058 |
| Deuteranopia (no green cones) | #6C7EAB | 0.050 |
| Tritanopia (no blue cones) | #009395 | 0.059 |
| Achromatopsia (no color) | #828282 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #478AAB
#478AAB
oklch(60.3% 0.085 231.9)
- #AA7251
#AA7251
oklch(60.3% 0.085 51)
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 #478AAB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Blue #5A86AD ΔE 0.022
- Off Blue #5684AE ΔE 0.023
- Blue NCS #118AB2 ΔE 0.030
- Cool Blue #4984B8 ΔE 0.030
- Steel Blue #4682B4 ΔE 0.031
- Teal Blue #01889F ΔE 0.041
- Faded Blue #658CBB ΔE 0.042
- Stormy Blue #507B9C ΔE 0.043
Use #478AAB 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.