#474E90
Closest named color: Twilight (#4E518B). oklch(45.1% 0.107 276.6), rgb(71, 78, 144).
Aa
White text reads best on this color (7.60:1).
About this color
#474E90 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.107 and its hue 277°. 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 7.60:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.76:1 |
| White text | 7.60:1 |
Values
| HEX | #474E90 |
| RGB | rgb(71, 78, 144) |
| HSL | hsl(234, 34%, 42%) |
| OKLCH | oklch(45.1% 0.107 276.6) |
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 #474E90 | 7.60:1 | AAA | Lc -91.1 | Preferred for body text |
| Black text on #474E90 | 2.76:1 | Fails | Lc 17.7 | Dividers and decoration only |
| #474E90 text on white | 7.60:1 | AAA | Lc 86.3 | Fine for body text |
| #474E90 text on black | 2.76:1 | Fails | Lc -15.8 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E6E9F6
oklch(93.6% 0.018 275.6)
-
Step 200
200
#D3D8F1
oklch(88.6% 0.035 276.7)
-
Step 300
300
#B6BEEA
oklch(81% 0.063 276.8)
-
Step 400
400
#909BDF
oklch(70.7% 0.1 276.5)
-
Step 500
500
#7681D6
oklch(63.2% 0.128 276.5)
-
Step 600
600
#6069C3
oklch(55.7% 0.138 276.6)
-
Step 700
700
#4F57A9
oklch(49.2% 0.13 276.3)
-
Step 800
800 (this color)
#474E90
oklch(45.1% 0.107 276.6)
-
Step 900
900
#373C6D
oklch(37.7% 0.083 277.2)
-
Step 950
950
#202440
oklch(27.1% 0.052 276.2)
#474E90 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) | #335792 | 0.032 |
| Deuteranopia (no green cones) | #2C518F | 0.033 |
| Tritanopia (no blue cones) | #2A5C68 | 0.094 |
| Achromatopsia (no color) | #545454 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #474E90
#474E90
oklch(45.1% 0.107 276.6)
- #655500
#655500
oklch(45.2% 0.093 96.4)
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 #474E90, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.017
- Dusk #4E5481 ΔE 0.035
- Blueberry #464196 ΔE 0.037
- Denim Blue #3B5B92 ΔE 0.037
- Dusk Blue #26538D ΔE 0.040
- Dark Slate Blue #483D8B ΔE 0.045
- Light Navy Blue #2E5A88 ΔE 0.047
- Dusky Blue #475F94 ΔE 0.048
Use #474E90 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.