#45647E
Closest named color: Slate (#516572). oklch(49% 0.055 244.6), rgb(69, 100, 126).
Aa
White text reads best on this color (6.21:1).
About this color
#45647E is a medium-dark, muted blue. In OKLCH its lightness is 49%, its chroma 0.055 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.025 away. White text reads best on it, at 6.21:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.37:1 |
| White text | 6.21:1 |
Values
| HEX | #45647E |
| RGB | rgb(69, 100, 126) |
| HSL | hsl(207, 29%, 38%) |
| OKLCH | oklch(49% 0.055 244.6) |
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 #45647E | 6.21:1 | AA | Lc -86.1 | Fine for body text |
| Black text on #45647E | 3.37:1 | AA large text | Lc 23.1 | Dividers and decoration only |
| #45647E text on white | 6.21:1 | AA | Lc 80.9 | Fine for body text |
| #45647E text on black | 3.37:1 | AA large text | Lc -20.9 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E6EAEF
oklch(93.5% 0.008 253.9)
-
Step 200
200
#D1DAE2
oklch(88.4% 0.015 244.7)
-
Step 300
300
#B3C3D1
oklch(80.9% 0.026 244.5)
-
Step 400
400
#8BA4BA
oklch(70.7% 0.043 245)
-
Step 500
500
#6E8EA9
oklch(63.2% 0.054 244.3)
-
Step 600
600
#557794
oklch(55.5% 0.06 244.9)
-
Step 700
700 (this color)
#45647E
oklch(49% 0.055 244.6)
-
Step 800
800
#395267
oklch(42.7% 0.046 244.5)
-
Step 900
900
#314454
oklch(37.7% 0.037 244.4)
-
Step 950
950
#1D2831
oklch(27.1% 0.023 243.4)
#45647E 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) | #59647F | 0.027 |
| Deuteranopia (no green cones) | #525E7E | 0.023 |
| Tritanopia (no blue cones) | #2E6A6D | 0.045 |
| Achromatopsia (no color) | #616161 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #45647E
#45647E
oklch(49% 0.055 244.6)
- #775A3E
#775A3E
oklch(49% 0.056 64.9)
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 #45647E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.025
- Denim #3B638C ΔE 0.026
- YInMn Blue #415A77 ΔE 0.031
- Dusty Grape #545775 ΔE 0.040
- Dusky Blue #475F94 ΔE 0.043
- Light Navy Blue #2E5A88 ΔE 0.047
- Denim Blue #3B5B92 ΔE 0.049
- Metallic Blue #4F738E ΔE 0.049
Use #45647E 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.