#478FA4
Closest named color: Dusty Blue (#5A86AD). oklch(61.2% 0.078 219.4), rgb(71, 143, 164).
Aa
Black text reads best on this color (5.73:1).
About this color
#478FA4 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 61%, its chroma 0.078 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Blue (#5A86AD), ΔE 0.037 away. Black text reads best on it, at 5.73:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Dusty Blue (#5A86AD) |
| Black text | 5.73:1 |
| White text | 3.66:1 |
Values
| HEX | #478FA4 |
| RGB | rgb(71, 143, 164) |
| HSL | hsl(194, 40%, 46%) |
| OKLCH | oklch(61.2% 0.078 219.4) |
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 #478FA4 | 3.66:1 | AA large text | Lc -69.5 | Content text, not long reading |
| Black text on #478FA4 | 5.73:1 | AA | Lc 40.0 | Non-text elements, placeholder text |
| #478FA4 text on white | 3.66:1 | AA large text | Lc 64.0 | Content text, not long reading |
| #478FA4 text on black | 5.73:1 | AA | Lc -37.6 | 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
#E2ECEF
oklch(93.6% 0.011 217.5)
-
Step 200
200
#CADDE3
oklch(88.5% 0.022 218.6)
-
Step 300
300
#A6C7D2
oklch(80.9% 0.039 220)
-
Step 400
400
#75AABB
oklch(70.7% 0.061 219.9)
-
Step 500
500 (this color)
#478FA4
oklch(61.2% 0.078 219.4)
-
Step 600
600
#2B7F95
oklch(55.6% 0.085 218.8)
-
Step 700
700
#1D6B7F
oklch(49.1% 0.079 219.1)
-
Step 800
800
#1B5767
oklch(42.6% 0.065 219.2)
-
Step 900
900
#1D4854
oklch(37.7% 0.051 218.9)
-
Step 950
950
#122A31
oklch(26.9% 0.033 219.1)
#478FA4 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) | #828BA5 | 0.067 |
| Deuteranopia (no green cones) | #7481A4 | 0.060 |
| Tritanopia (no blue cones) | #009696 | 0.046 |
| Achromatopsia (no color) | #868686 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #478FA4
#478FA4
oklch(61.2% 0.078 219.4)
- #AD7360
#AD7360
oklch(61.1% 0.079 38.9)
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 #478FA4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Blue #5A86AD ΔE 0.037
- Off Blue #5684AE ΔE 0.041
- Blue NCS #118AB2 ΔE 0.041
- Teal Green #0A9396 ΔE 0.042
- Teal Blue #01889F ΔE 0.043
- Sea #3C9992 ΔE 0.048
- Dusty Teal #4C9085 ΔE 0.049
- Blue Grey #758DA3 ΔE 0.049
Use #478FA4 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.