#455FB6
Closest named color: Mid Blue (#276AB3). oklch(51.1% 0.141 268.6), rgb(69, 95, 182).
Aa
White text reads best on this color (5.88:1).
About this color
#455FB6 is a medium-dark, vivid blue. In OKLCH its lightness is 51%, its chroma 0.141 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.038 away. White text reads best on it, at 5.88:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.141) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.56:1 |
| White text | 5.88:1 |
Values
| HEX | #455FB6 |
| RGB | rgb(69, 95, 182) |
| HSL | hsl(226, 45%, 49%) |
| OKLCH | oklch(51.1% 0.141 268.6) |
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 #455FB6 | 5.88:1 | AA | Lc -84.4 | Fine for body text |
| Black text on #455FB6 | 3.56:1 | AA large text | Lc 24.9 | Dividers and decoration only |
| #455FB6 text on white | 5.88:1 | AA | Lc 79.2 | Fine for body text |
| #455FB6 text on black | 3.56:1 | AA large text | Lc -22.6 | 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
#E4EAF8
oklch(93.7% 0.02 267.3)
-
Step 200
200
#CFD9F3
oklch(88.6% 0.037 268.9)
-
Step 300
300
#AEC0EE
oklch(81% 0.068 268.2)
-
Step 400
400
#849EE5
oklch(70.8% 0.108 268.2)
-
Step 500
500
#6684DD
oklch(63.1% 0.138 268.2)
-
Step 600
600
#4F6BCB
oklch(55.5% 0.152 268.8)
-
Step 700
700 (this color)
#455FB6
oklch(51.1% 0.141 268.6)
-
Step 800
800
#35498E
oklch(42.7% 0.116 268.9)
-
Step 900
900
#2D3E71
oklch(37.7% 0.09 268)
-
Step 950
950
#1B2542
oklch(27.1% 0.056 268.2)
#455FB6 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) | #336AB9 | 0.031 |
| Deuteranopia (no green cones) | #1F60B4 | 0.034 |
| Tritanopia (no blue cones) | #007382 | 0.120 |
| Achromatopsia (no color) | #646464 | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #455FB6
#455FB6
oklch(51.1% 0.141 268.6)
- #7F6200
#7F6200
oklch(51.1% 0.104 88.3)
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 #455FB6, closest first.
No curated palette has a color within ΔE 0.04 of #455FB6.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.038
- French Blue #436BAD ΔE 0.038
- Iris #6258C4 ΔE 0.048
- Dusky Blue #475F94 ΔE 0.055
- Denim Blue #3B5B92 ΔE 0.060
- Dark Periwinkle #665FD1 ΔE 0.062
- Warm Blue #4B57DB ΔE 0.063
- Flat Blue #3C73A8 ΔE 0.064
Use #455FB6 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.