#455FA4
Closest named color: Dusky Blue (#475F94). oklch(49.9% 0.115 266.7), rgb(69, 95, 164).
Aa
White text reads best on this color (6.12:1).
About this color
#455FA4 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.115 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.026 away. White text reads best on it, at 6.12:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.115) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.42:1 |
| White text | 6.12:1 |
Values
| HEX | #455FA4 |
| RGB | rgb(69, 95, 164) |
| HSL | hsl(224, 41%, 46%) |
| OKLCH | oklch(49.9% 0.115 266.7) |
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 #455FA4 | 6.12:1 | AA | Lc -85.6 | Fine for body text |
| Black text on #455FA4 | 3.42:1 | AA large text | Lc 23.6 | Dividers and decoration only |
| #455FA4 text on white | 6.12:1 | AA | Lc 80.4 | Fine for body text |
| #455FA4 text on black | 3.42:1 | AA large text | Lc -21.4 | 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 700.
-
Step 50
50
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF5
oklch(93.6% 0.016 266.3)
-
Step 200
200
#D0D9EE
oklch(88.5% 0.031 267.2)
-
Step 300
300
#B0C0E5
oklch(80.8% 0.055 266.7)
-
Step 400
400
#879FD9
oklch(70.6% 0.09 266.8)
-
Step 500
500
#6A87CE
oklch(63.2% 0.113 266.4)
-
Step 600
600
#526FBB
oklch(55.5% 0.123 266.7)
-
Step 700
700 (this color)
#455FA4
oklch(49.9% 0.115 266.7)
-
Step 800
800
#374C83
oklch(42.7% 0.095 266.7)
-
Step 900
900
#304069
oklch(37.8% 0.073 266.8)
-
Step 950
950
#1C253D
oklch(26.9% 0.047 267.6)
#455FA4 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) | #4166A7 | 0.019 |
| Deuteranopia (no green cones) | #355EA3 | 0.018 |
| Tritanopia (no blue cones) | #006E79 | 0.103 |
| Achromatopsia (no color) | #626262 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #455FA4
#455FA4
oklch(49.9% 0.115 266.7)
- #7C5E00
#7C5E00
oklch(49.9% 0.102 86.8)
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 #455FA4, closest first.
No curated palette has a color within ΔE 0.04 of #455FA4.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.026
- Denim Blue #3B5B92 ΔE 0.033
- French Blue #436BAD ΔE 0.034
- Mid Blue #276AB3 ΔE 0.040
- Denim #3B638C ΔE 0.045
- Twilight #4E518B ΔE 0.050
- Muted Blue #3B719F ΔE 0.054
- Light Navy Blue #2E5A88 ΔE 0.055
Use #455FA4 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.