#455BAF
Closest named color: French Blue (#436BAD). oklch(49.8% 0.136 269.9), rgb(69, 91, 175).
Aa
White text reads best on this color (6.23:1).
About this color
#455BAF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.136 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.045 away. White text reads best on it, at 6.23:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.136) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.36:1 |
| White text | 6.23:1 |
Values
| HEX | #455BAF |
| RGB | rgb(69, 91, 175) |
| HSL | hsl(228, 43%, 48%) |
| OKLCH | oklch(49.8% 0.136 269.9) |
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 #455BAF | 6.23:1 | AA | Lc -86.0 | Fine for body text |
| Black text on #455BAF | 3.36:1 | AA large text | Lc 23.2 | Dividers and decoration only |
| #455BAF text on white | 6.23:1 | AA | Lc 80.8 | Fine for body text |
| #455BAF text on black | 3.36:1 | AA large text | Lc -21.0 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5EAF7
oklch(93.7% 0.018 269.1)
-
Step 200
200
#CFD9F2
oklch(88.5% 0.036 268.3)
-
Step 300
300
#B0BFEC
oklch(80.9% 0.066 270.5)
-
Step 400
400
#879DE3
oklch(70.7% 0.106 270.2)
-
Step 500
500
#6A83DA
oklch(63% 0.134 270.1)
-
Step 600
600
#526BC8
oklch(55.5% 0.147 269.8)
-
Step 700
700 (this color)
#455BAF
oklch(49.8% 0.136 269.9)
-
Step 800
800
#37498C
oklch(42.7% 0.113 269.8)
-
Step 900
900
#303E70
oklch(37.8% 0.087 270)
-
Step 950
950
#1C2441
oklch(26.9% 0.055 270.7)
#455BAF 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) | #3266B2 | 0.032 |
| Deuteranopia (no green cones) | #205CAD | 0.035 |
| Tritanopia (no blue cones) | #006E7C | 0.119 |
| Achromatopsia (no color) | #616161 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #455BAF
#455BAF
oklch(49.8% 0.136 269.9)
- #795F00
#795F00
oklch(49.8% 0.102 90)
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 #455BAF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.045
- Mid Blue #276AB3 ΔE 0.045
- Dusky Blue #475F94 ΔE 0.047
- Denim Blue #3B5B92 ΔE 0.049
- Iris #6258C4 ΔE 0.053
- Twilight #4E518B ΔE 0.060
- Denim #3B638C ΔE 0.066
- Dusk Blue #26538D ΔE 0.069
Use #455BAF 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.