#455C97
Closest named color: Dusky Blue (#475F94). oklch(48.5% 0.099 266.6), rgb(69, 92, 151).
Aa
White text reads best on this color (6.49:1).
About this color
#455C97 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.099 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.011 away. White text reads best on it, at 6.49:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.23:1 |
| White text | 6.49:1 |
Values
| HEX | #455C97 |
| RGB | rgb(69, 92, 151) |
| HSL | hsl(223, 37%, 43%) |
| OKLCH | oklch(48.5% 0.099 266.6) |
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 #455C97 | 6.49:1 | AA | Lc -87.2 | Fine for body text |
| Black text on #455C97 | 3.23:1 | AA large text | Lc 21.9 | Dividers and decoration only |
| #455C97 text on white | 6.49:1 | AA | Lc 82.1 | Fine for body text |
| #455C97 text on black | 3.23:1 | AA large text | Lc -19.8 | 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
#E5EAF3
oklch(93.6% 0.013 262.4)
-
Step 200
200
#D1D9EB
oklch(88.5% 0.026 266.6)
-
Step 300
300
#B2C0E1
oklch(80.8% 0.049 267.1)
-
Step 400
400
#8BA0D1
oklch(70.8% 0.076 266.5)
-
Step 500
500
#6E87C5
oklch(63% 0.098 266.8)
-
Step 600
600
#5770B2
oklch(55.5% 0.107 267.2)
-
Step 700
700 (this color)
#455C97
oklch(48.5% 0.099 266.6)
-
Step 800
800
#3A4D7C
oklch(42.7% 0.082 266.3)
-
Step 900
900
#324064
oklch(37.7% 0.065 267.1)
-
Step 950
950
#1D263A
oklch(27% 0.04 265.3)
#455C97 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) | #446299 | 0.017 |
| Deuteranopia (no green cones) | #3B5A96 | 0.014 |
| Tritanopia (no blue cones) | #1B6972 | 0.090 |
| Achromatopsia (no color) | #5E5E5E | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #455C97
#455C97
oklch(48.5% 0.099 266.6)
- #775A00
#775A00
oklch(48.4% 0.099 86.7)
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 #455C97, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.011
- Denim Blue #3B5B92 ΔE 0.015
- Denim #3B638C ΔE 0.032
- Twilight #4E518B ΔE 0.034
- Light Navy Blue #2E5A88 ΔE 0.037
- Dusk #4E5481 ΔE 0.039
- Dusk Blue #26538D ΔE 0.048
- French Blue #436BAD ΔE 0.049
Use #455C97 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.