#455663
Closest named color: YInMn Blue (#415A77). oklch(44.4% 0.03 241.3), rgb(69, 86, 99).
Aa
White text reads best on this color (7.59:1).
About this color
#455663 is a dark, muted blue. In OKLCH its lightness is 44%, its chroma 0.030 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.032 away. White text reads best on it, at 7.59:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | muted (0.030) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.76:1 |
| White text | 7.59:1 |
Values
| HEX | #455663 |
| RGB | rgb(69, 86, 99) |
| HSL | hsl(206, 18%, 33%) |
| OKLCH | oklch(44.4% 0.03 241.3) |
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 #455663 | 7.59:1 | AAA | Lc -91.2 | Preferred for body text |
| Black text on #455663 | 2.76:1 | Fails | Lc 17.6 | Dividers and decoration only |
| #455663 text on white | 7.59:1 | AAA | Lc 86.4 | Fine for body text |
| #455663 text on black | 2.76:1 | Fails | Lc -15.7 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E7EAED
oklch(93.6% 0.005 247.9)
-
Step 200
200
#D4DADF
oklch(88.5% 0.009 242.9)
-
Step 300
300
#B7C2CB
oklch(80.8% 0.018 242.5)
-
Step 400
400
#92A3B1
oklch(70.7% 0.028 242.9)
-
Step 500
500
#778D9E
oklch(63.2% 0.036 241.4)
-
Step 600
600
#5F7788
oklch(55.6% 0.039 239.2)
-
Step 700
700
#4F6474
oklch(49.2% 0.036 241.3)
-
Step 800
800 (this color)
#455663
oklch(44.4% 0.03 241.3)
-
Step 900
900
#37434D
oklch(37.6% 0.023 243.5)
-
Step 950
950
#20272D
oklch(26.8% 0.015 244.2)
#455663 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) | #515664 | 0.018 |
| Deuteranopia (no green cones) | #4D5263 | 0.016 |
| Tritanopia (no blue cones) | #3C595A | 0.024 |
| Achromatopsia (no color) | #545454 | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #455663
#455663
oklch(44.4% 0.03 241.3)
- #605043
#605043
oklch(44.4% 0.03 61)
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 #455663, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.032
- Dusty Grape #545775 ΔE 0.039
- Dark Slate Gray #2F4F4F ΔE 0.049
- Slate #516572 ΔE 0.051
- Petrol #005F6A ΔE 0.054
- Dusk #4E5481 ΔE 0.055
- Deep Teal #00555A ΔE 0.061
- Light Navy Blue #2E5A88 ΔE 0.062
Use #455663 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.