#4D5299
Closest named color: Twilight (#4E518B). oklch(47% 0.114 278), rgb(77, 82, 153).
Aa
White text reads best on this color (7.04:1).
About this color
#4D5299 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.114 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.023 away. White text reads best on it, at 7.04:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.98:1 |
| White text | 7.04:1 |
Values
| HEX | #4D5299 |
| RGB | rgb(77, 82, 153) |
| HSL | hsl(236, 33%, 45%) |
| OKLCH | oklch(47% 0.114 278) |
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 #4D5299 | 7.04:1 | AAA | Lc -89.2 | Fine for body text |
| Black text on #4D5299 | 2.98:1 | Fails | Lc 19.8 | Dividers and decoration only |
| #4D5299 text on white | 7.04:1 | AAA | Lc 84.2 | Fine for body text |
| #4D5299 text on black | 2.98:1 | Fails | Lc -17.7 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F5
oklch(93.6% 0.016 278.5)
-
Step 200
200
#D4D8EE
oklch(88.6% 0.03 277.6)
-
Step 300
300
#B8BEE5
oklch(81% 0.055 278.2)
-
Step 400
400
#939BD7
oklch(70.6% 0.088 278)
-
Step 500
500
#7A82CD
oklch(63.2% 0.113 278)
-
Step 600
600
#646AB9
oklch(55.6% 0.122 278.4)
-
Step 700
700 (this color)
#4D5299
oklch(47% 0.114 278)
-
Step 800
800
#444881
oklch(42.6% 0.094 278.6)
-
Step 900
900
#393D68
oklch(37.7% 0.073 278.2)
-
Step 950
950
#21243D
oklch(27% 0.047 277.6)
#4D5299 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) | #345C9C | 0.038 |
| Deuteranopia (no green cones) | #2E5697 | 0.038 |
| Tritanopia (no blue cones) | #30616E | 0.099 |
| Achromatopsia (no color) | #595959 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D5299
#4D5299
oklch(47% 0.114 278)
- #695B00
#695B00
oklch(47% 0.097 98.8)
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 #4D5299, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.023
- Denim Blue #3B5B92 ΔE 0.036
- Dusky Blue #475F94 ΔE 0.039
- Dusk #4E5481 ΔE 0.041
- Blueberry #464196 ΔE 0.047
- Dusk Blue #26538D ΔE 0.051
- Light Navy Blue #2E5A88 ΔE 0.054
- Dark Slate Blue #483D8B ΔE 0.059
Use #4D5299 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.