#478EA4
Closest named color: Dusty Blue (#5A86AD). oklch(61% 0.078 220.7), rgb(71, 142, 164).
Aa
Black text reads best on this color (5.67:1).
About this color
#478EA4 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 61%, its chroma 0.078 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Blue (#5A86AD), ΔE 0.035 away. Black text reads best on it, at 5.67:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Dusty Blue (#5A86AD) |
| Black text | 5.67:1 |
| White text | 3.70:1 |
Values
| HEX | #478EA4 |
| RGB | rgb(71, 142, 164) |
| HSL | hsl(194, 40%, 46%) |
| OKLCH | oklch(61% 0.078 220.7) |
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 #478EA4 | 3.70:1 | AA large text | Lc -69.9 | Content text, not long reading |
| Black text on #478EA4 | 5.67:1 | AA | Lc 39.7 | Non-text elements, placeholder text |
| #478EA4 text on white | 3.70:1 | AA large text | Lc 64.4 | Content text, not long reading |
| #478EA4 text on black | 5.67:1 | AA | Lc -37.3 | 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
#CBDDE3
oklch(88.6% 0.021 219.7)
-
Step 300
300
#A6C7D2
oklch(80.9% 0.039 220)
-
Step 400
400
#75AABC
oklch(70.7% 0.062 221.2)
-
Step 500
500 (this color)
#478EA4
oklch(61% 0.078 220.7)
-
Step 600
600
#2D7F96
oklch(55.7% 0.085 220.1)
-
Step 700
700
#1E6B80
oklch(49.2% 0.079 220.3)
-
Step 800
800
#1C5768
oklch(42.7% 0.065 220.7)
-
Step 900
900
#1E4855
oklch(37.8% 0.051 221)
-
Step 950
950
#132A32
oklch(27% 0.033 222.8)
#478EA4 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) | #818BA5 | 0.066 |
| Deuteranopia (no green cones) | #7380A4 | 0.059 |
| Tritanopia (no blue cones) | #009595 | 0.048 |
| Achromatopsia (no color) | #858585 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #478EA4
#478EA4
oklch(61% 0.078 220.7)
- #AC735F
#AC735F
oklch(61% 0.078 40.1)
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 #478EA4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Blue #5A86AD ΔE 0.035
- Off Blue #5684AE ΔE 0.039
- Blue NCS #118AB2 ΔE 0.040
- Teal Blue #01889F ΔE 0.041
- Teal Green #0A9396 ΔE 0.043
- Cool Blue #4984B8 ΔE 0.048
- Steel Blue #4682B4 ΔE 0.049
- Blue Grey #758DA3 ΔE 0.049
Use #478EA4 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.