#456DC9
Closest named color: Windows Blue (#3778BF). oklch(55.3% 0.15 264.4), rgb(69, 109, 201).
Aa
White text reads best on this color (4.90:1).
About this color
#456DC9 is a medium-dark, vivid blue. In OKLCH its lightness is 55%, its chroma 0.150 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.037 away. White text reads best on it, at 4.90:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.150) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.28:1 |
| White text | 4.90:1 |
Values
| HEX | #456DC9 |
| RGB | rgb(69, 109, 201) |
| HSL | hsl(222, 55%, 53%) |
| OKLCH | oklch(55.3% 0.15 264.4) |
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 #456DC9 | 4.90:1 | AA | Lc -79.1 | Fine for body text |
| Black text on #456DC9 | 4.28:1 | AA large text | Lc 30.4 | Non-text elements, placeholder text |
| #456DC9 text on white | 4.90:1 | AA | Lc 73.7 | Content text, not long reading |
| #456DC9 text on black | 4.28:1 | AA large text | Lc -28.0 | 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 600.
-
Step 50
50
#F2F5FC
oklch(97% 0.01 267.4)
-
Step 100
100
#E3EAF7
oklch(93.6% 0.019 263)
-
Step 200
200
#CDD9F3
oklch(88.4% 0.038 265.8)
-
Step 300
300
#ABC1ED
oklch(80.9% 0.067 264.1)
-
Step 400
400
#7F9FE4
oklch(70.6% 0.108 264.7)
-
Step 500
500
#5F86DC
oklch(63.1% 0.137 264.4)
-
Step 600
600 (this color)
#456DC9
oklch(55.3% 0.15 264.4)
-
Step 700
700
#385BAF
oklch(49.1% 0.14 264.7)
-
Step 800
800
#2E4B8D
oklch(42.6% 0.115 264.3)
-
Step 900
900
#293F71
oklch(37.7% 0.09 264.6)
-
Step 950
950
#182542
oklch(26.9% 0.057 264.6)
#456DC9 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) | #3F77CC | 0.026 |
| Deuteranopia (no green cones) | #276BC7 | 0.027 |
| Tritanopia (no blue cones) | #008291 | 0.124 |
| Achromatopsia (no color) | #717171 | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #456DC9
#456DC9
oklch(55.3% 0.15 264.4)
- #916C00
#916C00
oklch(55.4% 0.113 84.8)
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 #456DC9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.037
- Royal Blue #4169E1 ΔE 0.040
- French Blue #436BAD ΔE 0.044
- Mid Blue #276AB3 ΔE 0.046
- Dark Periwinkle #665FD1 ΔE 0.053
- Flat Blue #3C73A8 ΔE 0.059
- Iris #6258C4 ΔE 0.059
- Warm Blue #4B57DB ΔE 0.062
Use #456DC9 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.