#20478E
Closest named color: Cobalt (#1E488F). oklch(41.2% 0.126 261.2), rgb(32, 71, 142).
Aa
White text reads best on this color (8.92:1).
About this color
#20478E is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.126 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.003 away. White text reads best on it, at 8.92:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.126) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.35:1 |
| White text | 8.92:1 |
Values
| HEX | #20478E |
| RGB | rgb(32, 71, 142) |
| HSL | hsl(219, 63%, 34%) |
| OKLCH | oklch(41.2% 0.126 261.2) |
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 #20478E | 8.92:1 | AAA | Lc -94.5 | Preferred for body text |
| Black text on #20478E | 2.35:1 | Fails | Lc 13.9 | Not readable |
| #20478E text on white | 8.92:1 | AAA | Lc 90.1 | Preferred for body text |
| #20478E text on black | 2.35:1 | Fails | Lc -12.2 | Not readable |
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 800.
-
Step 50
50
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EAF9
oklch(93.5% 0.022 263.2)
-
Step 200
200
#CADAF5
oklch(88.5% 0.041 260.9)
-
Step 300
300
#A6C2F1
oklch(81% 0.073 260.7)
-
Step 400
400
#76A0EA
oklch(70.6% 0.118 261.2)
-
Step 500
500
#5387E3
oklch(63.1% 0.15 261)
-
Step 600
600
#386ED1
oklch(55.5% 0.164 261.3)
-
Step 700
700
#2A5CB5
oklch(49.1% 0.151 260.9)
-
Step 800
800 (this color)
#20478E
oklch(41.2% 0.126 261.2)
-
Step 900
900
#224075
oklch(37.8% 0.098 260.9)
-
Step 950
950
#142645
oklch(27.1% 0.063 260.6)
#20478E 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) | #1E4F91 | 0.022 |
| Deuteranopia (no green cones) | #00458D | 0.020 |
| Tritanopia (no blue cones) | #005863 | 0.100 |
| Achromatopsia (no color) | #4A4A4A | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #20478E
#20478E
oklch(41.2% 0.126 261.2)
- #624500
#624500
oklch(41.2% 0.085 81.2)
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 #20478E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.003
- Light Navy #155084 ΔE 0.033
- Dusk Blue #26538D ΔE 0.036
- Twilight Blue #0A437A ΔE 0.039
- Deep Sea Blue #015482 ΔE 0.047
- Blueberry #464196 ΔE 0.050
- Dark Slate Blue #483D8B ΔE 0.054
- Sapphire #2138AB ΔE 0.061
Use #20478E 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.