#49578E
Closest named color: Twilight (#4E518B). oklch(47.1% 0.091 271.7), rgb(73, 87, 142).
Aa
White text reads best on this color (6.91:1).
About this color
#49578E is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.091 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.017 away. White text reads best on it, at 6.91:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.03:1 |
| White text | 6.91:1 |
Values
| HEX | #49578E |
| RGB | rgb(73, 87, 142) |
| HSL | hsl(228, 32%, 42%) |
| OKLCH | oklch(47.1% 0.091 271.7) |
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 #49578E | 6.91:1 | AA | Lc -88.8 | Fine for body text |
| Black text on #49578E | 3.03:1 | AA large text | Lc 20.2 | Dividers and decoration only |
| #49578E text on white | 6.91:1 | AA | Lc 83.8 | Fine for body text |
| #49578E text on black | 3.03:1 | AA large text | Lc -18.1 | Dividers and decoration only |
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 700.
-
Step 50
50
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7EAF3
oklch(93.7% 0.013 271.3)
-
Step 200
200
#D3D9EA
oklch(88.6% 0.024 270.3)
-
Step 300
300
#B6C0DE
oklch(81% 0.044 270.8)
-
Step 400
400
#919FCD
oklch(70.8% 0.069 271.4)
-
Step 500
500
#7686C0
oklch(63.1% 0.09 271.8)
-
Step 600
600
#5F6FAD
oklch(55.6% 0.098 271.9)
-
Step 700
700 (this color)
#49578E
oklch(47.1% 0.091 271.7)
-
Step 800
800
#404C78
oklch(42.7% 0.075 271.4)
-
Step 900
900
#364061
oklch(37.8% 0.058 270.6)
-
Step 950
950
#202539
oklch(26.9% 0.038 272.9)
#49578E 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) | #425D90 | 0.018 |
| Deuteranopia (no green cones) | #3C578D | 0.017 |
| Tritanopia (no blue cones) | #2F626B | 0.081 |
| Achromatopsia (no color) | #5A5A5A | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #49578E
#49578E
oklch(47.1% 0.091 271.7)
- #6E590E
#6E590E
oklch(47.2% 0.091 91.7)
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 #49578E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.017
- Denim Blue #3B5B92 ΔE 0.019
- Dusk #4E5481 ΔE 0.022
- Dusky Blue #475F94 ΔE 0.023
- Light Navy Blue #2E5A88 ΔE 0.034
- Denim #3B638C ΔE 0.038
- YInMn Blue #415A77 ΔE 0.043
- Dusty Grape #545775 ΔE 0.043
Use #49578E 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.