#455D6F
Closest named color: YInMn Blue (#415A77). oklch(46.6% 0.041 241.1), rgb(69, 93, 111).
Aa
White text reads best on this color (6.88:1).
About this color
#455D6F is a medium-dark, muted blue. In OKLCH its lightness is 47%, its chroma 0.041 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.019 away. White text reads best on it, at 6.88:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 3.04:1 |
| White text | 6.88:1 |
Values
| HEX | #455D6F |
| RGB | rgb(69, 93, 111) |
| HSL | hsl(206, 23%, 35%) |
| OKLCH | oklch(46.6% 0.041 241.1) |
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 #455D6F | 6.88:1 | AA | Lc -88.8 | Fine for body text |
| Black text on #455D6F | 3.04:1 | AA large text | Lc 20.2 | Dividers and decoration only |
| #455D6F text on white | 6.88:1 | AA | Lc 83.8 | Fine for body text |
| #455D6F text on black | 3.04:1 | AA large text | Lc -18.2 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E7EAED
oklch(93.6% 0.005 247.9)
-
Step 200
200
#D3DAE0
oklch(88.5% 0.011 243.7)
-
Step 300
300
#B6C3CD
oklch(81% 0.02 240.8)
-
Step 400
400
#90A4B3
oklch(70.8% 0.031 240.4)
-
Step 500
500
#748DA0
oklch(63.1% 0.04 241.1)
-
Step 600
600
#5C778B
oklch(55.6% 0.044 240.6)
-
Step 700
700 (this color)
#455D6F
oklch(46.6% 0.041 241.1)
-
Step 800
800
#3E5260
oklch(42.8% 0.034 239.1)
-
Step 900
900
#35444F
oklch(37.8% 0.027 240.2)
-
Step 950
950
#1F282E
oklch(27.1% 0.017 237.4)
#455D6F 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) | #555D70 | 0.022 |
| Deuteranopia (no green cones) | #50586F | 0.020 |
| Tritanopia (no blue cones) | #376163 | 0.032 |
| Achromatopsia (no color) | #5A5A5A | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #455D6F
#455D6F
oklch(46.6% 0.041 241.1)
- #6B5542
#6B5542
oklch(46.7% 0.041 62.4)
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 #455D6F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.019
- Dusty Grape #545775 ΔE 0.031
- Slate #516572 ΔE 0.031
- Denim #3B638C ΔE 0.046
- Dusk #4E5481 ΔE 0.047
- Light Navy Blue #2E5A88 ΔE 0.051
- Petrol #005F6A ΔE 0.052
- Dark Aqua #05696B ΔE 0.058
Use #455D6F 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.