#455E69
Closest named color: Slate (#516572). oklch(46.6% 0.035 226.8), rgb(69, 94, 105).
Aa
White text reads best on this color (6.86:1).
About this color
#455E69 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 47%, its chroma 0.035 and its hue 227°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.030 away. White text reads best on it, at 6.86:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.035) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.05:1 |
| White text | 6.86:1 |
Values
| HEX | #455E69 |
| RGB | rgb(69, 94, 105) |
| HSL | hsl(198, 21%, 34%) |
| OKLCH | oklch(46.6% 0.035 226.8) |
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 #455E69 | 6.86:1 | AA | Lc -88.7 | Fine for body text |
| Black text on #455E69 | 3.05:1 | AA large text | Lc 20.3 | Dividers and decoration only |
| #455E69 text on white | 6.86:1 | AA | Lc 83.7 | Fine for body text |
| #455E69 text on black | 3.05:1 | 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
#E7EAEC
oklch(93.5% 0.004 236.5)
-
Step 200
200
#D3DADE
oklch(88.4% 0.009 232.4)
-
Step 300
300
#B6C3C9
oklch(80.9% 0.017 227)
-
Step 400
400
#90A4AE
oklch(70.6% 0.027 229.3)
-
Step 500
500
#748E9A
oklch(63.1% 0.035 227.6)
-
Step 600
600
#5C7885
oklch(55.6% 0.038 228)
-
Step 700
700 (this color)
#455E69
oklch(46.6% 0.035 226.8)
-
Step 800
800
#3E525B
oklch(42.5% 0.029 227.2)
-
Step 900
900
#35444B
oklch(37.6% 0.023 228)
-
Step 950
950
#1F282C
oklch(27% 0.015 226.6)
#455E69 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) | #585D6A | 0.027 |
| Deuteranopia (no green cones) | #535869 | 0.025 |
| Tritanopia (no blue cones) | #396161 | 0.024 |
| Achromatopsia (no color) | #5A5A5A | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #455E69
#455E69
oklch(46.6% 0.035 226.8)
- #6B5449
#6B5449
oklch(46.6% 0.035 46.9)
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 #455E69, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.030
- YInMn Blue #415A77 ΔE 0.030
- Dusty Grape #545775 ΔE 0.039
- Petrol #005F6A ΔE 0.050
- Dark Aqua #05696B ΔE 0.052
- Dark Green Blue #1F6357 ΔE 0.055
- Denim #3B638C ΔE 0.055
- Dusk #4E5481 ΔE 0.058
Use #455E69 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.