#4A508F
Closest named color: Twilight (#4E518B). oklch(45.7% 0.102 277.4), rgb(74, 80, 143).
Aa
White text reads best on this color (7.40:1).
About this color
#4A508F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.102 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.010 away. White text reads best on it, at 7.40:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.83:1 |
| White text | 7.40:1 |
Values
| HEX | #4A508F |
| RGB | rgb(74, 80, 143) |
| HSL | hsl(235, 32%, 43%) |
| OKLCH | oklch(45.7% 0.102 277.4) |
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 #4A508F | 7.40:1 | AAA | Lc -90.5 | Preferred for body text |
| Black text on #4A508F | 2.83:1 | Fails | Lc 18.4 | Dividers and decoration only |
| #4A508F text on white | 7.40:1 | AAA | Lc 85.6 | Fine for body text |
| #4A508F text on black | 2.83:1 | Fails | Lc -16.4 | 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
#E7E9F6
oklch(93.6% 0.018 279.1)
-
Step 200
200
#D3D8F0
oklch(88.6% 0.033 276.3)
-
Step 300
300
#B7BEE8
oklch(81% 0.06 277.6)
-
Step 400
400
#929BDC
oklch(70.7% 0.096 277.6)
-
Step 500
500
#7881D2
oklch(63.1% 0.122 277.5)
-
Step 600
600
#6269BF
oklch(55.6% 0.132 277.7)
-
Step 700
700
#5157A5
oklch(49.1% 0.123 277.5)
-
Step 800
800 (this color)
#4A508F
oklch(45.7% 0.102 277.4)
-
Step 900
900
#383C6B
oklch(37.6% 0.08 278.1)
-
Step 950
950
#21243F
oklch(27.2% 0.05 277.7)
#4A508F 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) | #375891 | 0.030 |
| Deuteranopia (no green cones) | #32538E | 0.031 |
| Tritanopia (no blue cones) | #315D68 | 0.090 |
| Achromatopsia (no color) | #555555 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4A508F
#4A508F
oklch(45.7% 0.102 277.4)
- #665700
#665700
oklch(45.8% 0.095 97.5)
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 #4A508F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.010
- Dusk #4E5481 ΔE 0.029
- Denim Blue #3B5B92 ΔE 0.034
- Dusky Blue #475F94 ΔE 0.042
- Dusk Blue #26538D ΔE 0.043
- Blueberry #464196 ΔE 0.044
- Light Navy Blue #2E5A88 ΔE 0.045
- Dark Slate Blue #483D8B ΔE 0.051
Use #4A508F 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.