#455388
Closest named color: Twilight (#4E518B). oklch(45.6% 0.088 271.3), rgb(69, 83, 136).
Aa
White text reads best on this color (7.37:1).
About this color
#455388 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.088 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.015 away. White text reads best on it, at 7.37:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.84:1 |
| White text | 7.37:1 |
Values
| HEX | #455388 |
| RGB | rgb(69, 83, 136) |
| HSL | hsl(227, 33%, 40%) |
| OKLCH | oklch(45.6% 0.088 271.3) |
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 #455388 | 7.37:1 | AAA | Lc -90.4 | Preferred for body text |
| Black text on #455388 | 2.84:1 | Fails | Lc 18.5 | Dividers and decoration only |
| #455388 text on white | 7.37:1 | AAA | Lc 85.5 | Fine for body text |
| #455388 text on black | 2.84:1 | Fails | Lc -16.5 | 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 800.
-
Step 50
50
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E6EAF4
oklch(93.7% 0.014 268.5)
-
Step 200
200
#D2D9ED
oklch(88.6% 0.029 270.4)
-
Step 300
300
#B4BFE3
oklch(80.8% 0.052 271.8)
-
Step 400
400
#8E9ED5
oklch(70.7% 0.083 271.6)
-
Step 500
500
#7285CA
oklch(63.1% 0.107 271.4)
-
Step 600
600
#5B6EB6
oklch(55.6% 0.114 271.1)
-
Step 700
700
#4B5C9D
oklch(49.2% 0.106 271)
-
Step 800
800 (this color)
#455388
oklch(45.6% 0.088 271.3)
-
Step 900
900
#343F66
oklch(37.7% 0.069 270.9)
-
Step 950
950
#1F253C
oklch(27% 0.044 272.1)
#455388 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) | #3F598A | 0.018 |
| Deuteranopia (no green cones) | #385387 | 0.017 |
| Tritanopia (no blue cones) | #2B5E67 | 0.078 |
| Achromatopsia (no color) | #565656 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #455388
#455388
oklch(45.6% 0.088 271.3)
- #69540B
#69540B
oklch(45.5% 0.088 90.9)
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 #455388, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.015
- Dusk #4E5481 ΔE 0.018
- Denim Blue #3B5B92 ΔE 0.026
- Light Navy Blue #2E5A88 ΔE 0.031
- Dusk Blue #26538D ΔE 0.036
- Dusky Blue #475F94 ΔE 0.037
- YInMn Blue #415A77 ΔE 0.040
- Dusty Grape #545775 ΔE 0.042
Use #455388 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.