#455F5E
Closest named color: Slate (#516572). oklch(46.4% 0.031 193.2), rgb(69, 95, 94).
Aa
White text reads best on this color (6.88:1).
About this color
#455F5E is a medium-dark, muted teal or cyan. In OKLCH its lightness is 46%, its chroma 0.031 and its hue 193°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.039 away. White text reads best on it, at 6.88:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.031) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.05:1 |
| White text | 6.88:1 |
Values
| HEX | #455F5E |
| RGB | rgb(69, 95, 94) |
| HSL | hsl(178, 16%, 32%) |
| OKLCH | oklch(46.4% 0.031 193.2) |
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 #455F5E | 6.88:1 | AA | Lc -88.7 | Fine for body text |
| Black text on #455F5E | 3.05:1 | AA large text | Lc 20.3 | Dividers and decoration only |
| #455F5E text on white | 6.88:1 | AA | Lc 83.8 | Fine for body text |
| #455F5E 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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E7EBEA
oklch(93.7% 0.004 179.7)
-
Step 200
200
#D3DBDA
oklch(88.5% 0.009 188.1)
-
Step 300
300
#B6C4C3
oklch(80.9% 0.015 191.7)
-
Step 400
400
#90A6A5
oklch(70.8% 0.025 193.3)
-
Step 500
500
#75908F
oklch(63.2% 0.031 193.6)
-
Step 600
600
#5D7A79
oklch(55.7% 0.033 193.6)
-
Step 700
700 (this color)
#455F5E
oklch(46.4% 0.031 193.2)
-
Step 800
800
#3F5453
oklch(42.8% 0.026 192.6)
-
Step 900
900
#354544
oklch(37.6% 0.021 191.6)
-
Step 950
950
#1F2828
oklch(26.8% 0.013 196.4)
#455F5E 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) | #5C5C5E | 0.033 |
| Deuteranopia (no green cones) | #57595E | 0.030 |
| Tritanopia (no blue cones) | #3D615F | 0.011 |
| Achromatopsia (no color) | #5A5A5A | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #455F5E
#455F5E
oklch(46.4% 0.031 193.2)
- #6A5254
#6A5254
oklch(46.4% 0.032 12.8)
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 #455F5E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.039
- Dark Green Blue #1F6357 ΔE 0.042
- YInMn Blue #415A77 ΔE 0.049
- Dark Aqua #05696B ΔE 0.049
- Petrol #005F6A ΔE 0.051
- Dusty Grape #545775 ΔE 0.056
- Dark Slate Gray #2F4F4F ΔE 0.062
- Dim Gray #696969 ΔE 0.064
Use #455F5E 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.