#474F91
Closest named color: Twilight (#4E518B). oklch(45.4% 0.107 276), rgb(71, 79, 145).
Aa
White text reads best on this color (7.51:1).
About this color
#474F91 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.107 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.016 away. White text reads best on it, at 7.51:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.79:1 |
| White text | 7.51:1 |
Values
| HEX | #474F91 |
| RGB | rgb(71, 79, 145) |
| HSL | hsl(234, 34%, 42%) |
| OKLCH | oklch(45.4% 0.107 276) |
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 #474F91 | 7.51:1 | AAA | Lc -90.8 | Preferred for body text |
| Black text on #474F91 | 2.79:1 | Fails | Lc 18.1 | Dividers and decoration only |
| #474F91 text on white | 7.51:1 | AAA | Lc 86.0 | Fine for body text |
| #474F91 text on black | 2.79:1 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E6E9F6
oklch(93.6% 0.018 275.6)
-
Step 200
200
#D2D8F1
oklch(88.5% 0.035 274.9)
-
Step 300
300
#B5BEEA
oklch(80.9% 0.063 275.9)
-
Step 400
400
#8F9BDF
oklch(70.6% 0.101 275.8)
-
Step 500
500
#7581D6
oklch(63.1% 0.128 276)
-
Step 600
600
#5F69C3
oklch(55.6% 0.139 276.2)
-
Step 700
700
#4E57A9
oklch(49.1% 0.13 275.8)
-
Step 800
800 (this color)
#474F91
oklch(45.4% 0.107 276)
-
Step 900
900
#363C6D
oklch(37.6% 0.084 276.3)
-
Step 950
950
#202440
oklch(27.1% 0.052 276.2)
#474F91 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) | #345893 | 0.032 |
| Deuteranopia (no green cones) | #2D5290 | 0.032 |
| Tritanopia (no blue cones) | #295D69 | 0.094 |
| Achromatopsia (no color) | #555555 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #474F91
#474F91
oklch(45.4% 0.107 276)
- #665500
#665500
oklch(45.3% 0.093 95.6)
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 #474F91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.016
- Dusk #4E5481 ΔE 0.034
- Denim Blue #3B5B92 ΔE 0.035
- Blueberry #464196 ΔE 0.039
- Dusk Blue #26538D ΔE 0.040
- Dusky Blue #475F94 ΔE 0.045
- Light Navy Blue #2E5A88 ΔE 0.046
- Dark Slate Blue #483D8B ΔE 0.048
Use #474F91 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.