#455799
Closest named color: Denim Blue (#3B5B92). oklch(47.5% 0.109 270.3), rgb(69, 87, 153).
Aa
White text reads best on this color (6.82:1).
About this color
#455799 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.109 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.021 away. White text reads best on it, at 6.82:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 3.07:1 |
| White text | 6.82:1 |
Values
| HEX | #455799 |
| RGB | rgb(69, 87, 153) |
| HSL | hsl(227, 38%, 44%) |
| OKLCH | oklch(47.5% 0.109 270.3) |
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 #455799 | 6.82:1 | AA | Lc -88.4 | Fine for body text |
| Black text on #455799 | 3.07:1 | AA large text | Lc 20.6 | Dividers and decoration only |
| #455799 text on white | 6.82:1 | AA | Lc 83.4 | Fine for body text |
| #455799 text on black | 3.07:1 | AA large text | Lc -18.5 | 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 700.
-
Step 50
50
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E6EAF4
oklch(93.7% 0.014 268.5)
-
Step 200
200
#D1D9ED
oklch(88.5% 0.029 268.3)
-
Step 300
300
#B3C0E4
oklch(81% 0.053 269.6)
-
Step 400
400
#8C9ED6
oklch(70.6% 0.085 270.4)
-
Step 500
500
#7185CB
oklch(63.1% 0.108 270.9)
-
Step 600
600
#596EB8
oklch(55.6% 0.118 270.3)
-
Step 700
700 (this color)
#455799
oklch(47.5% 0.109 270.3)
-
Step 800
800
#3C4B80
oklch(42.6% 0.09 270.3)
-
Step 900
900
#333F67
oklch(37.7% 0.07 270.1)
-
Step 950
950
#1E253C
oklch(27% 0.044 270.3)
#455799 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) | #3B5F9C | 0.023 |
| Deuteranopia (no green cones) | #315798 | 0.023 |
| Tritanopia (no blue cones) | #1A6570 | 0.097 |
| Achromatopsia (no color) | #5B5B5B | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #455799
#455799
oklch(47.5% 0.109 270.3)
- #715900
#715900
oklch(47.5% 0.097 90.5)
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 #455799, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.021
- Dusky Blue #475F94 ΔE 0.026
- Twilight #4E518B ΔE 0.027
- Dusk #4E5481 ΔE 0.039
- Light Navy Blue #2E5A88 ΔE 0.041
- Dusk Blue #26538D ΔE 0.043
- Denim #3B638C ΔE 0.045
- Blueberry #464196 ΔE 0.058
Use #455799 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.