#474D99
Closest named color: Twilight (#4E518B). oklch(45.5% 0.122 277), rgb(71, 77, 153).
Aa
White text reads best on this color (7.52:1).
About this color
#474D99 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.122 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.029 away. White text reads best on it, at 7.52:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.78:1 |
| White text | 7.52:1 |
Values
| HEX | #474D99 |
| RGB | rgb(71, 77, 153) |
| HSL | hsl(236, 37%, 44%) |
| OKLCH | oklch(45.5% 0.122 277) |
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 #474D99 | 7.52:1 | AAA | Lc -90.8 | Preferred for body text |
| Black text on #474D99 | 2.78:1 | Fails | Lc 18.1 | Dividers and decoration only |
| #474D99 text on white | 7.52:1 | AAA | Lc 86.0 | Fine for body text |
| #474D99 text on black | 2.78:1 | Fails | Lc -16.1 | 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 800.
-
Step 50
50
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E6E9F8
oklch(93.6% 0.02 276.9)
-
Step 200
200
#D2D7F4
oklch(88.4% 0.04 277.8)
-
Step 300
300
#B4BDEF
oklch(80.9% 0.071 276.7)
-
Step 400
400
#8F99E7
oklch(70.6% 0.114 277.5)
-
Step 500
500
#747EE0
oklch(63% 0.146 276.9)
-
Step 600
600
#5E65CE
oklch(55.5% 0.16 277)
-
Step 700
700
#4E54B2
oklch(49.2% 0.147 276.8)
-
Step 800
800 (this color)
#474D99
oklch(45.5% 0.122 277)
-
Step 900
900
#363B73
oklch(37.8% 0.095 277)
-
Step 950
950
#1F2343
oklch(27% 0.059 276.3)
#474D99 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) | #29589C | 0.041 |
| Deuteranopia (no green cones) | #205197 | 0.044 |
| Tritanopia (no blue cones) | #235E6B | 0.108 |
| Achromatopsia (no color) | #545454 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #474D99
#474D99
oklch(45.5% 0.122 277)
- #665600
#665600
oklch(45.5% 0.094 96.6)
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 #474D99, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.029
- Blueberry #464196 ΔE 0.031
- Denim Blue #3B5B92 ΔE 0.044
- Dark Slate Blue #483D8B ΔE 0.045
- Dusk Blue #26538D ΔE 0.046
- Dusk #4E5481 ΔE 0.049
- Dusky Blue #475F94 ΔE 0.053
- Cobalt #1E488F ΔE 0.055
Use #474D99 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.