#454F99
Closest named color: Twilight (#4E518B). oklch(45.8% 0.12 274.9), rgb(69, 79, 153).
Aa
White text reads best on this color (7.41:1).
About this color
#454F99 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.120 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.028 away. White text reads best on it, at 7.41:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.83:1 |
| White text | 7.41:1 |
Values
| HEX | #454F99 |
| RGB | rgb(69, 79, 153) |
| HSL | hsl(233, 38%, 44%) |
| OKLCH | oklch(45.8% 0.12 274.9) |
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 #454F99 | 7.41:1 | AAA | Lc -90.4 | Preferred for body text |
| Black text on #454F99 | 2.83:1 | Fails | Lc 18.4 | Dividers and decoration only |
| #454F99 text on white | 7.41:1 | AAA | Lc 85.6 | Fine for body text |
| #454F99 text on black | 2.83:1 | Fails | Lc -16.5 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5E9F8
oklch(93.5% 0.021 274)
-
Step 200
200
#D1D8F4
oklch(88.6% 0.039 274.4)
-
Step 300
300
#B3BEEE
oklch(80.9% 0.069 274.7)
-
Step 400
400
#8C9BE6
oklch(70.8% 0.111 274.6)
-
Step 500
500
#7180DF
oklch(63.1% 0.143 274.8)
-
Step 600
600
#5B67CD
oklch(55.6% 0.156 275.1)
-
Step 700
700
#4B55B1
oklch(49.1% 0.145 275.1)
-
Step 800
800 (this color)
#454F99
oklch(45.8% 0.12 274.9)
-
Step 900
900
#343C72
oklch(37.8% 0.092 274.8)
-
Step 950
950
#1E2343
oklch(26.9% 0.06 275)
#454F99 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) | #2D599C | 0.035 |
| Deuteranopia (no green cones) | #235297 | 0.038 |
| Tritanopia (no blue cones) | #1C5F6C | 0.106 |
| Achromatopsia (no color) | #555555 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #454F99
#454F99
oklch(45.8% 0.12 274.9)
- #685600
#685600
oklch(45.8% 0.094 94.9)
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 #454F99, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.028
- Blueberry #464196 ΔE 0.036
- Denim Blue #3B5B92 ΔE 0.038
- Dusk Blue #26538D ΔE 0.043
- Dusk #4E5481 ΔE 0.046
- Dusky Blue #475F94 ΔE 0.048
- Dark Slate Blue #483D8B ΔE 0.050
- Light Navy Blue #2E5A88 ΔE 0.052
Use #454F99 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.